diff --git a/stage0/src/Lean/Elab/Tactic/Basic.lean b/stage0/src/Lean/Elab/Tactic/Basic.lean
index a6296d48fc..e00559ff1b 100644
--- a/stage0/src/Lean/Elab/Tactic/Basic.lean
+++ b/stage0/src/Lean/Elab/Tactic/Basic.lean
@@ -280,8 +280,8 @@ fun stx => liftMetaTactic $ fun mvarId => do Meta.assumption mvarId; pure []
 
 @[builtinTactic Lean.Parser.Tactic.intro] def evalIntro : Tactic :=
 fun stx => match_syntax stx with
-  | `(tactic| intro)    => liftMetaTactic $ fun mvarId => do (_, mvarId) ← Meta.intro1 mvarId; pure [mvarId]
-  | `(tactic| intro $h) => liftMetaTactic $ fun mvarId => do (_, mvarId) ← Meta.intro mvarId h.getId; pure [mvarId]
+  | `(tactic| intro)               => liftMetaTactic $ fun mvarId => do (_, mvarId) ← Meta.intro1 mvarId; pure [mvarId]
+--   | `(tactic| intro $h) => liftMetaTactic $ fun mvarId => do (_, mvarId) ← Meta.intro mvarId h.getId; pure [mvarId]
   | _                   => throwUnsupportedSyntax
 
 private def getIntrosSize : Expr → Nat
diff --git a/stage0/src/Lean/Parser/Tactic.lean b/stage0/src/Lean/Parser/Tactic.lean
index aa683e0803..37a1cd104e 100644
--- a/stage0/src/Lean/Parser/Tactic.lean
+++ b/stage0/src/Lean/Parser/Tactic.lean
@@ -25,7 +25,7 @@ fun c s =>
 
 def ident' : Parser := ident <|> underscore
 
-@[builtinTacticParser] def «intro»      := parser! nonReservedSymbol "intro " >> optional ident'
+@[builtinTacticParser] def «intro»      := parser! nonReservedSymbol "intro " >> many (termParser maxPrec)
 @[builtinTacticParser] def «intros»     := parser! nonReservedSymbol "intros " >> many ident'
 @[builtinTacticParser] def «revert»     := parser! nonReservedSymbol "revert " >> many1 ident
 @[builtinTacticParser] def «clear»      := parser! nonReservedSymbol "clear " >> many1 ident
diff --git a/stage0/stdlib/Lean/Elab/Tactic/Basic.c b/stage0/stdlib/Lean/Elab/Tactic/Basic.c
index ad1e690454..1b0b0054ce 100644
--- a/stage0/stdlib/Lean/Elab/Tactic/Basic.c
+++ b/stage0/stdlib/Lean/Elab/Tactic/Basic.c
@@ -50,7 +50,7 @@ lean_object* l_Lean_Elab_Tactic_monadExcept___lambda__1(lean_object*, lean_objec
 lean_object* l_Lean_Elab_Tactic_pruneSolvedGoals(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_evalChoiceAux___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Array_forMAux___main___at_Lean_Elab_Tactic_forEachVar___spec__1___lambda__3___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
+lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_Elab_throwUnsupportedSyntax___rarg___closed__1;
 uint8_t lean_name_eq(lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_evalSkip(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -143,7 +143,6 @@ lean_object* l___regBuiltin_Lean_Elab_Tactic_evalIntros___closed__1;
 lean_object* l_Std_PersistentHashMap_empty___at_Lean_Elab_Tactic_tacticElabAttribute___spec__3;
 lean_object* l___regBuiltin_Lean_Elab_Tactic_evalParen___closed__2;
 extern lean_object* l_Lean_PersistentEnvExtension_inhabited___rarg___closed__1;
-lean_object* l_Lean_Meta_intro(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_throwError___at_Lean_Elab_Tactic_evalTactic___main___spec__1(lean_object*);
 lean_object* l_Lean_Elab_Tactic_evalNestedTacticBlock___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_tagUntaggedGoals___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -396,7 +395,6 @@ lean_object* l_Lean_Syntax_getTailWithPos___main(lean_object*);
 lean_object* l_Lean_setEnv___at_Lean_Elab_Tactic_BacktrackableState_restore___spec__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_tacticElabAttribute___closed__3;
 lean_object* l___regBuiltin_Lean_Elab_Tactic_evalIntro(lean_object*);
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__2(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_evalRevert___lambda__1(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_liftMetaM___rarg___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Array_umapMAux___main___at_Lean_Elab_Tactic_getFVarIds___spec__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -416,7 +414,6 @@ lean_object* l_Lean_Elab_Tactic_evalSubst(lean_object*, lean_object*, lean_objec
 lean_object* l_ReaderT_bind___at_Lean_Elab_Tactic_focus___spec__1(lean_object*, lean_object*);
 lean_object* l___regBuiltin_Lean_Elab_Tactic_evalFailIfSuccess___closed__3;
 lean_object* l_Std_PersistentHashMap_findAux___main___at_Lean_Elab_Tactic_evalTactic___main___spec__4___boxed(lean_object*, lean_object*, lean_object*);
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_evalChoiceAux___main___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Elab_Tactic_withMacroExpansion(lean_object*);
 extern lean_object* l_Lean_Meta_CheckAssignment_checkFVar___closed__2;
@@ -9862,76 +9859,7 @@ x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
 return x_5;
 }
 }
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
-_start:
-{
-lean_object* x_8; lean_object* x_9; 
-x_8 = l_Lean_Syntax_getId(x_1);
-x_9 = l_Lean_Meta_intro(x_2, x_8, x_3, x_4, x_5, x_6, x_7);
-if (lean_obj_tag(x_9) == 0)
-{
-uint8_t x_10; 
-x_10 = !lean_is_exclusive(x_9);
-if (x_10 == 0)
-{
-lean_object* x_11; lean_object* x_12; lean_object* x_13; lean_object* x_14; 
-x_11 = lean_ctor_get(x_9, 0);
-x_12 = lean_ctor_get(x_11, 1);
-lean_inc(x_12);
-lean_dec(x_11);
-x_13 = lean_box(0);
-x_14 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_14, 0, x_12);
-lean_ctor_set(x_14, 1, x_13);
-lean_ctor_set(x_9, 0, x_14);
-return x_9;
-}
-else
-{
-lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; 
-x_15 = lean_ctor_get(x_9, 0);
-x_16 = lean_ctor_get(x_9, 1);
-lean_inc(x_16);
-lean_inc(x_15);
-lean_dec(x_9);
-x_17 = lean_ctor_get(x_15, 1);
-lean_inc(x_17);
-lean_dec(x_15);
-x_18 = lean_box(0);
-x_19 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_19, 0, x_17);
-lean_ctor_set(x_19, 1, x_18);
-x_20 = lean_alloc_ctor(0, 2, 0);
-lean_ctor_set(x_20, 0, x_19);
-lean_ctor_set(x_20, 1, x_16);
-return x_20;
-}
-}
-else
-{
-uint8_t x_21; 
-x_21 = !lean_is_exclusive(x_9);
-if (x_21 == 0)
-{
-return x_9;
-}
-else
-{
-lean_object* x_22; lean_object* x_23; lean_object* x_24; 
-x_22 = lean_ctor_get(x_9, 0);
-x_23 = lean_ctor_get(x_9, 1);
-lean_inc(x_23);
-lean_inc(x_22);
-lean_dec(x_9);
-x_24 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_24, 0, x_22);
-lean_ctor_set(x_24, 1, x_23);
-return x_24;
-}
-}
-}
-}
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__2(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
+lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6) {
 _start:
 {
 uint8_t x_7; lean_object* x_8; 
@@ -10021,30 +9949,30 @@ return x_3;
 lean_object* l_Lean_Elab_Tactic_evalIntro(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7, lean_object* x_8, lean_object* x_9, lean_object* x_10) {
 _start:
 {
-uint8_t x_11; lean_object* x_100; uint8_t x_101; 
-x_100 = l_Lean_Elab_Tactic_evalIntro___closed__2;
+uint8_t x_11; lean_object* x_59; uint8_t x_60; 
+x_59 = l_Lean_Elab_Tactic_evalIntro___closed__2;
 lean_inc(x_1);
-x_101 = l_Lean_Syntax_isOfKind(x_1, x_100);
-if (x_101 == 0)
+x_60 = l_Lean_Syntax_isOfKind(x_1, x_59);
+if (x_60 == 0)
 {
-uint8_t x_102; 
-x_102 = 0;
-x_11 = x_102;
-goto block_99;
+uint8_t x_61; 
+x_61 = 0;
+x_11 = x_61;
+goto block_58;
 }
 else
 {
-lean_object* x_103; lean_object* x_104; lean_object* x_105; uint8_t x_106; 
-x_103 = l_Lean_Syntax_getArgs(x_1);
-x_104 = lean_array_get_size(x_103);
-lean_dec(x_103);
-x_105 = lean_unsigned_to_nat(2u);
-x_106 = lean_nat_dec_eq(x_104, x_105);
-lean_dec(x_104);
-x_11 = x_106;
-goto block_99;
+lean_object* x_62; lean_object* x_63; lean_object* x_64; uint8_t x_65; 
+x_62 = l_Lean_Syntax_getArgs(x_1);
+x_63 = lean_array_get_size(x_62);
+lean_dec(x_62);
+x_64 = lean_unsigned_to_nat(2u);
+x_65 = lean_nat_dec_eq(x_63, x_64);
+lean_dec(x_63);
+x_11 = x_65;
+goto block_58;
 }
-block_99:
+block_58:
 {
 if (x_11 == 0)
 {
@@ -10063,38 +9991,39 @@ return x_12;
 }
 else
 {
-lean_object* x_13; lean_object* x_14; uint8_t x_15; lean_object* x_53; uint8_t x_54; uint8_t x_55; 
+lean_object* x_13; lean_object* x_14; uint8_t x_15; lean_object* x_51; uint8_t x_52; 
 x_13 = lean_unsigned_to_nat(1u);
 x_14 = l_Lean_Syntax_getArg(x_1, x_13);
 lean_dec(x_1);
-x_53 = l_Lean_nullKind___closed__2;
+x_51 = l_Lean_nullKind___closed__2;
 lean_inc(x_14);
-x_54 = l_Lean_Syntax_isOfKind(x_14, x_53);
-if (x_54 == 0)
+x_52 = l_Lean_Syntax_isOfKind(x_14, x_51);
+if (x_52 == 0)
 {
-uint8_t x_94; 
-x_94 = 0;
-x_55 = x_94;
-goto block_93;
+uint8_t x_53; 
+lean_dec(x_14);
+x_53 = 0;
+x_15 = x_53;
+goto block_50;
 }
 else
 {
-lean_object* x_95; lean_object* x_96; lean_object* x_97; uint8_t x_98; 
-x_95 = l_Lean_Syntax_getArgs(x_14);
-x_96 = lean_array_get_size(x_95);
-lean_dec(x_95);
-x_97 = lean_unsigned_to_nat(0u);
-x_98 = lean_nat_dec_eq(x_96, x_97);
-lean_dec(x_96);
-x_55 = x_98;
-goto block_93;
+lean_object* x_54; lean_object* x_55; lean_object* x_56; uint8_t x_57; 
+x_54 = l_Lean_Syntax_getArgs(x_14);
+lean_dec(x_14);
+x_55 = lean_array_get_size(x_54);
+lean_dec(x_54);
+x_56 = lean_unsigned_to_nat(0u);
+x_57 = lean_nat_dec_eq(x_55, x_56);
+lean_dec(x_55);
+x_15 = x_57;
+goto block_50;
 }
-block_52:
+block_50:
 {
 if (x_15 == 0)
 {
 lean_object* x_16; 
-lean_dec(x_14);
 lean_dec(x_9);
 lean_dec(x_8);
 lean_dec(x_7);
@@ -10108,332 +10037,139 @@ return x_16;
 }
 else
 {
-lean_object* x_17; lean_object* x_18; lean_object* x_19; 
-x_17 = lean_unsigned_to_nat(0u);
-x_18 = l_Lean_Syntax_getArg(x_14, x_17);
-lean_dec(x_14);
+lean_object* x_17; 
 lean_inc(x_4);
-x_19 = l_Lean_Elab_Tactic_getMainGoal(x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_10);
-if (lean_obj_tag(x_19) == 0)
+x_17 = l_Lean_Elab_Tactic_getMainGoal(x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_10);
+if (lean_obj_tag(x_17) == 0)
 {
-lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; lean_object* x_29; lean_object* x_30; 
-x_20 = lean_ctor_get(x_19, 0);
+lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; 
+x_18 = lean_ctor_get(x_17, 0);
+lean_inc(x_18);
+x_19 = lean_ctor_get(x_17, 1);
+lean_inc(x_19);
+lean_dec(x_17);
+x_20 = lean_ctor_get(x_18, 0);
 lean_inc(x_20);
-x_21 = lean_ctor_get(x_19, 1);
+x_21 = lean_ctor_get(x_18, 1);
 lean_inc(x_21);
-lean_dec(x_19);
-x_22 = lean_ctor_get(x_20, 0);
-lean_inc(x_22);
-x_23 = lean_ctor_get(x_20, 1);
-lean_inc(x_23);
-lean_dec(x_20);
-lean_inc(x_22);
-x_24 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_evalIntro___lambda__1___boxed), 7, 2);
-lean_closure_set(x_24, 0, x_18);
-lean_closure_set(x_24, 1, x_22);
-x_25 = l_Lean_Elab_Tactic_liftMetaTactic___closed__1;
-x_26 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
-lean_closure_set(x_26, 0, x_24);
-lean_closure_set(x_26, 1, x_25);
-lean_inc(x_5);
-lean_inc(x_4);
-lean_inc(x_3);
-lean_inc(x_2);
-x_27 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaM___rarg___boxed), 10, 5);
-lean_closure_set(x_27, 0, x_26);
-lean_closure_set(x_27, 1, x_2);
-lean_closure_set(x_27, 2, x_3);
-lean_closure_set(x_27, 3, x_4);
-lean_closure_set(x_27, 4, x_5);
-x_28 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaTacticAux___rarg___lambda__1___boxed), 11, 5);
-lean_closure_set(x_28, 0, x_23);
-lean_closure_set(x_28, 1, x_2);
-lean_closure_set(x_28, 2, x_3);
-lean_closure_set(x_28, 3, x_4);
-lean_closure_set(x_28, 4, x_5);
-x_29 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
-lean_closure_set(x_29, 0, x_27);
-lean_closure_set(x_29, 1, x_28);
-x_30 = l_Lean_Meta_getMVarDecl___at_Lean_Meta_isReadOnlyExprMVar___spec__1(x_22, x_6, x_7, x_8, x_9, x_21);
-if (lean_obj_tag(x_30) == 0)
-{
-lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; 
-x_31 = lean_ctor_get(x_30, 0);
-lean_inc(x_31);
-x_32 = lean_ctor_get(x_30, 1);
-lean_inc(x_32);
-lean_dec(x_30);
-x_33 = lean_ctor_get(x_31, 1);
-lean_inc(x_33);
-x_34 = lean_ctor_get(x_31, 4);
-lean_inc(x_34);
-lean_dec(x_31);
-x_35 = l___private_Lean_Meta_Basic_27__withLocalContextImpl___rarg(x_33, x_34, x_29, x_6, x_7, x_8, x_9, x_32);
-if (lean_obj_tag(x_35) == 0)
-{
-uint8_t x_36; 
-x_36 = !lean_is_exclusive(x_35);
-if (x_36 == 0)
-{
-return x_35;
-}
-else
-{
-lean_object* x_37; lean_object* x_38; lean_object* x_39; 
-x_37 = lean_ctor_get(x_35, 0);
-x_38 = lean_ctor_get(x_35, 1);
-lean_inc(x_38);
-lean_inc(x_37);
-lean_dec(x_35);
-x_39 = lean_alloc_ctor(0, 2, 0);
-lean_ctor_set(x_39, 0, x_37);
-lean_ctor_set(x_39, 1, x_38);
-return x_39;
-}
-}
-else
-{
-uint8_t x_40; 
-x_40 = !lean_is_exclusive(x_35);
-if (x_40 == 0)
-{
-return x_35;
-}
-else
-{
-lean_object* x_41; lean_object* x_42; lean_object* x_43; 
-x_41 = lean_ctor_get(x_35, 0);
-x_42 = lean_ctor_get(x_35, 1);
-lean_inc(x_42);
-lean_inc(x_41);
-lean_dec(x_35);
-x_43 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_43, 0, x_41);
-lean_ctor_set(x_43, 1, x_42);
-return x_43;
-}
-}
-}
-else
-{
-uint8_t x_44; 
-lean_dec(x_29);
-lean_dec(x_9);
-lean_dec(x_8);
-lean_dec(x_7);
-lean_dec(x_6);
-x_44 = !lean_is_exclusive(x_30);
-if (x_44 == 0)
-{
-return x_30;
-}
-else
-{
-lean_object* x_45; lean_object* x_46; lean_object* x_47; 
-x_45 = lean_ctor_get(x_30, 0);
-x_46 = lean_ctor_get(x_30, 1);
-lean_inc(x_46);
-lean_inc(x_45);
-lean_dec(x_30);
-x_47 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_47, 0, x_45);
-lean_ctor_set(x_47, 1, x_46);
-return x_47;
-}
-}
-}
-else
-{
-uint8_t x_48; 
 lean_dec(x_18);
-lean_dec(x_9);
-lean_dec(x_8);
-lean_dec(x_7);
-lean_dec(x_6);
-lean_dec(x_5);
-lean_dec(x_4);
-lean_dec(x_3);
-lean_dec(x_2);
-x_48 = !lean_is_exclusive(x_19);
-if (x_48 == 0)
-{
-return x_19;
-}
-else
-{
-lean_object* x_49; lean_object* x_50; lean_object* x_51; 
-x_49 = lean_ctor_get(x_19, 0);
-x_50 = lean_ctor_get(x_19, 1);
-lean_inc(x_50);
-lean_inc(x_49);
-lean_dec(x_19);
-x_51 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_51, 0, x_49);
-lean_ctor_set(x_51, 1, x_50);
-return x_51;
-}
-}
-}
-}
-block_93:
-{
-if (x_55 == 0)
-{
-if (x_54 == 0)
-{
-uint8_t x_56; 
-x_56 = 0;
-x_15 = x_56;
-goto block_52;
-}
-else
-{
-lean_object* x_57; lean_object* x_58; uint8_t x_59; 
-x_57 = l_Lean_Syntax_getArgs(x_14);
-x_58 = lean_array_get_size(x_57);
-lean_dec(x_57);
-x_59 = lean_nat_dec_eq(x_58, x_13);
-lean_dec(x_58);
-x_15 = x_59;
-goto block_52;
-}
-}
-else
-{
-lean_object* x_60; 
-lean_dec(x_14);
-lean_inc(x_4);
-x_60 = l_Lean_Elab_Tactic_getMainGoal(x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_10);
-if (lean_obj_tag(x_60) == 0)
-{
-lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; lean_object* x_65; lean_object* x_66; lean_object* x_67; lean_object* x_68; lean_object* x_69; lean_object* x_70; lean_object* x_71; 
-x_61 = lean_ctor_get(x_60, 0);
-lean_inc(x_61);
-x_62 = lean_ctor_get(x_60, 1);
-lean_inc(x_62);
-lean_dec(x_60);
-x_63 = lean_ctor_get(x_61, 0);
-lean_inc(x_63);
-x_64 = lean_ctor_get(x_61, 1);
-lean_inc(x_64);
-lean_dec(x_61);
-lean_inc(x_63);
-x_65 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_evalIntro___lambda__2), 6, 1);
-lean_closure_set(x_65, 0, x_63);
-x_66 = l_Lean_Elab_Tactic_liftMetaTactic___closed__1;
-x_67 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
-lean_closure_set(x_67, 0, x_65);
-lean_closure_set(x_67, 1, x_66);
+lean_inc(x_20);
+x_22 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_evalIntro___lambda__1), 6, 1);
+lean_closure_set(x_22, 0, x_20);
+x_23 = l_Lean_Elab_Tactic_liftMetaTactic___closed__1;
+x_24 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
+lean_closure_set(x_24, 0, x_22);
+lean_closure_set(x_24, 1, x_23);
 lean_inc(x_5);
 lean_inc(x_4);
 lean_inc(x_3);
 lean_inc(x_2);
-x_68 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaM___rarg___boxed), 10, 5);
-lean_closure_set(x_68, 0, x_67);
-lean_closure_set(x_68, 1, x_2);
-lean_closure_set(x_68, 2, x_3);
-lean_closure_set(x_68, 3, x_4);
-lean_closure_set(x_68, 4, x_5);
-x_69 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaTacticAux___rarg___lambda__1___boxed), 11, 5);
-lean_closure_set(x_69, 0, x_64);
-lean_closure_set(x_69, 1, x_2);
-lean_closure_set(x_69, 2, x_3);
-lean_closure_set(x_69, 3, x_4);
-lean_closure_set(x_69, 4, x_5);
-x_70 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
-lean_closure_set(x_70, 0, x_68);
-lean_closure_set(x_70, 1, x_69);
-x_71 = l_Lean_Meta_getMVarDecl___at_Lean_Meta_isReadOnlyExprMVar___spec__1(x_63, x_6, x_7, x_8, x_9, x_62);
-if (lean_obj_tag(x_71) == 0)
+x_25 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaM___rarg___boxed), 10, 5);
+lean_closure_set(x_25, 0, x_24);
+lean_closure_set(x_25, 1, x_2);
+lean_closure_set(x_25, 2, x_3);
+lean_closure_set(x_25, 3, x_4);
+lean_closure_set(x_25, 4, x_5);
+x_26 = lean_alloc_closure((void*)(l_Lean_Elab_Tactic_liftMetaTacticAux___rarg___lambda__1___boxed), 11, 5);
+lean_closure_set(x_26, 0, x_21);
+lean_closure_set(x_26, 1, x_2);
+lean_closure_set(x_26, 2, x_3);
+lean_closure_set(x_26, 3, x_4);
+lean_closure_set(x_26, 4, x_5);
+x_27 = lean_alloc_closure((void*)(l_ReaderT_bind___at_Lean_Meta_Lean_MonadLCtx___spec__2___rarg), 7, 2);
+lean_closure_set(x_27, 0, x_25);
+lean_closure_set(x_27, 1, x_26);
+x_28 = l_Lean_Meta_getMVarDecl___at_Lean_Meta_isReadOnlyExprMVar___spec__1(x_20, x_6, x_7, x_8, x_9, x_19);
+if (lean_obj_tag(x_28) == 0)
 {
-lean_object* x_72; lean_object* x_73; lean_object* x_74; lean_object* x_75; lean_object* x_76; 
-x_72 = lean_ctor_get(x_71, 0);
-lean_inc(x_72);
-x_73 = lean_ctor_get(x_71, 1);
-lean_inc(x_73);
-lean_dec(x_71);
-x_74 = lean_ctor_get(x_72, 1);
-lean_inc(x_74);
-x_75 = lean_ctor_get(x_72, 4);
-lean_inc(x_75);
-lean_dec(x_72);
-x_76 = l___private_Lean_Meta_Basic_27__withLocalContextImpl___rarg(x_74, x_75, x_70, x_6, x_7, x_8, x_9, x_73);
-if (lean_obj_tag(x_76) == 0)
+lean_object* x_29; lean_object* x_30; lean_object* x_31; lean_object* x_32; lean_object* x_33; 
+x_29 = lean_ctor_get(x_28, 0);
+lean_inc(x_29);
+x_30 = lean_ctor_get(x_28, 1);
+lean_inc(x_30);
+lean_dec(x_28);
+x_31 = lean_ctor_get(x_29, 1);
+lean_inc(x_31);
+x_32 = lean_ctor_get(x_29, 4);
+lean_inc(x_32);
+lean_dec(x_29);
+x_33 = l___private_Lean_Meta_Basic_27__withLocalContextImpl___rarg(x_31, x_32, x_27, x_6, x_7, x_8, x_9, x_30);
+if (lean_obj_tag(x_33) == 0)
 {
-uint8_t x_77; 
-x_77 = !lean_is_exclusive(x_76);
-if (x_77 == 0)
+uint8_t x_34; 
+x_34 = !lean_is_exclusive(x_33);
+if (x_34 == 0)
 {
-return x_76;
+return x_33;
 }
 else
 {
-lean_object* x_78; lean_object* x_79; lean_object* x_80; 
-x_78 = lean_ctor_get(x_76, 0);
-x_79 = lean_ctor_get(x_76, 1);
-lean_inc(x_79);
-lean_inc(x_78);
-lean_dec(x_76);
-x_80 = lean_alloc_ctor(0, 2, 0);
-lean_ctor_set(x_80, 0, x_78);
-lean_ctor_set(x_80, 1, x_79);
-return x_80;
+lean_object* x_35; lean_object* x_36; lean_object* x_37; 
+x_35 = lean_ctor_get(x_33, 0);
+x_36 = lean_ctor_get(x_33, 1);
+lean_inc(x_36);
+lean_inc(x_35);
+lean_dec(x_33);
+x_37 = lean_alloc_ctor(0, 2, 0);
+lean_ctor_set(x_37, 0, x_35);
+lean_ctor_set(x_37, 1, x_36);
+return x_37;
 }
 }
 else
 {
-uint8_t x_81; 
-x_81 = !lean_is_exclusive(x_76);
-if (x_81 == 0)
+uint8_t x_38; 
+x_38 = !lean_is_exclusive(x_33);
+if (x_38 == 0)
 {
-return x_76;
+return x_33;
 }
 else
 {
-lean_object* x_82; lean_object* x_83; lean_object* x_84; 
-x_82 = lean_ctor_get(x_76, 0);
-x_83 = lean_ctor_get(x_76, 1);
-lean_inc(x_83);
-lean_inc(x_82);
-lean_dec(x_76);
-x_84 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_84, 0, x_82);
-lean_ctor_set(x_84, 1, x_83);
-return x_84;
+lean_object* x_39; lean_object* x_40; lean_object* x_41; 
+x_39 = lean_ctor_get(x_33, 0);
+x_40 = lean_ctor_get(x_33, 1);
+lean_inc(x_40);
+lean_inc(x_39);
+lean_dec(x_33);
+x_41 = lean_alloc_ctor(1, 2, 0);
+lean_ctor_set(x_41, 0, x_39);
+lean_ctor_set(x_41, 1, x_40);
+return x_41;
 }
 }
 }
 else
 {
-uint8_t x_85; 
-lean_dec(x_70);
+uint8_t x_42; 
+lean_dec(x_27);
 lean_dec(x_9);
 lean_dec(x_8);
 lean_dec(x_7);
 lean_dec(x_6);
-x_85 = !lean_is_exclusive(x_71);
-if (x_85 == 0)
+x_42 = !lean_is_exclusive(x_28);
+if (x_42 == 0)
 {
-return x_71;
+return x_28;
 }
 else
 {
-lean_object* x_86; lean_object* x_87; lean_object* x_88; 
-x_86 = lean_ctor_get(x_71, 0);
-x_87 = lean_ctor_get(x_71, 1);
-lean_inc(x_87);
-lean_inc(x_86);
-lean_dec(x_71);
-x_88 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_88, 0, x_86);
-lean_ctor_set(x_88, 1, x_87);
-return x_88;
+lean_object* x_43; lean_object* x_44; lean_object* x_45; 
+x_43 = lean_ctor_get(x_28, 0);
+x_44 = lean_ctor_get(x_28, 1);
+lean_inc(x_44);
+lean_inc(x_43);
+lean_dec(x_28);
+x_45 = lean_alloc_ctor(1, 2, 0);
+lean_ctor_set(x_45, 0, x_43);
+lean_ctor_set(x_45, 1, x_44);
+return x_45;
 }
 }
 }
 else
 {
-uint8_t x_89; 
+uint8_t x_46; 
 lean_dec(x_9);
 lean_dec(x_8);
 lean_dec(x_7);
@@ -10442,23 +10178,23 @@ lean_dec(x_5);
 lean_dec(x_4);
 lean_dec(x_3);
 lean_dec(x_2);
-x_89 = !lean_is_exclusive(x_60);
-if (x_89 == 0)
+x_46 = !lean_is_exclusive(x_17);
+if (x_46 == 0)
 {
-return x_60;
+return x_17;
 }
 else
 {
-lean_object* x_90; lean_object* x_91; lean_object* x_92; 
-x_90 = lean_ctor_get(x_60, 0);
-x_91 = lean_ctor_get(x_60, 1);
-lean_inc(x_91);
-lean_inc(x_90);
-lean_dec(x_60);
-x_92 = lean_alloc_ctor(1, 2, 0);
-lean_ctor_set(x_92, 0, x_90);
-lean_ctor_set(x_92, 1, x_91);
-return x_92;
+lean_object* x_47; lean_object* x_48; lean_object* x_49; 
+x_47 = lean_ctor_get(x_17, 0);
+x_48 = lean_ctor_get(x_17, 1);
+lean_inc(x_48);
+lean_inc(x_47);
+lean_dec(x_17);
+x_49 = lean_alloc_ctor(1, 2, 0);
+lean_ctor_set(x_49, 0, x_47);
+lean_ctor_set(x_49, 1, x_48);
+return x_49;
 }
 }
 }
@@ -10467,15 +10203,6 @@ return x_92;
 }
 }
 }
-lean_object* l_Lean_Elab_Tactic_evalIntro___lambda__1___boxed(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5, lean_object* x_6, lean_object* x_7) {
-_start:
-{
-lean_object* x_8; 
-x_8 = l_Lean_Elab_Tactic_evalIntro___lambda__1(x_1, x_2, x_3, x_4, x_5, x_6, x_7);
-lean_dec(x_1);
-return x_8;
-}
-}
 lean_object* _init_l___regBuiltin_Lean_Elab_Tactic_evalIntro___closed__1() {
 _start:
 {
diff --git a/stage0/stdlib/Lean/Parser/Tactic.c b/stage0/stdlib/Lean/Parser/Tactic.c
index 32c97e3d33..6527e105d8 100644
--- a/stage0/stdlib/Lean/Parser/Tactic.c
+++ b/stage0/stdlib/Lean/Parser/Tactic.c
@@ -75,6 +75,7 @@ lean_object* l_Lean_Parser_Tactic_apply___closed__2;
 lean_object* l_Lean_Parser_Tactic_matchAlts___closed__3;
 lean_object* l_Lean_Parser_Tactic_change_parenthesizer___closed__6;
 lean_object* l_Lean_Parser_Tactic_induction_formatter___closed__10;
+extern lean_object* l_Lean_Parser_Term_explicit___closed__2;
 lean_object* l_Lean_Parser_Tactic_traceState_parenthesizer___closed__1;
 extern lean_object* l_Lean_Parser_Term_matchAlt___closed__3;
 lean_object* l_Lean_Parser_Tactic_skip___closed__6;
@@ -314,7 +315,6 @@ lean_object* l___regBuiltin_Lean_Parser_Tactic_generalize_formatter(lean_object*
 lean_object* l_Lean_Parser_Tactic_majorPremise_formatter___closed__1;
 lean_object* l_Lean_Parser_Tactic_location___closed__5;
 lean_object* l_Lean_PrettyPrinter_Parenthesizer_andthen_parenthesizer(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
-lean_object* l_Lean_Parser_Tactic_intro_formatter___closed__6;
 lean_object* l_Lean_Parser_Tactic_injection___closed__1;
 lean_object* l_Lean_Parser_Tactic_failIfSuccess_parenthesizer___closed__1;
 lean_object* l_Lean_Parser_Tactic_cases___closed__1;
@@ -579,6 +579,7 @@ lean_object* l_Lean_Parser_Tactic_cases___elambda__1___closed__2;
 lean_object* l_Lean_Parser_Tactic_underscore_formatter(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_failIfSuccess_formatter___closed__3;
 lean_object* l_Lean_Parser_Tactic_generalizingVars___elambda__1___closed__4;
+lean_object* l_Lean_Parser_manyAux___main___at_Lean_Parser_Tactic_intro___elambda__1___spec__1(lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_changeWith___closed__7;
 lean_object* l_Lean_Parser_Tactic_apply___closed__6;
 extern lean_object* l_Lean_Parser_mkAntiquot_formatter___closed__6;
@@ -595,7 +596,6 @@ lean_object* l___private_Lean_Parser_Basic_2__sepByFnAux___main___at_Lean_Parser
 lean_object* l___regBuiltin_Lean_Parser_Tactic_nestedTacticBlockCurly_parenthesizer___closed__1;
 lean_object* l_Lean_Parser_Tactic_inductionAlt___closed__6;
 lean_object* l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-lean_object* l_Lean_Parser_Tactic_intro_parenthesizer___closed__5;
 lean_object* l_Lean_Parser_Tactic_inductionAlts___closed__5;
 extern lean_object* l_Lean_Parser_Term_namedHole;
 lean_object* l_Lean_Parser_Tactic_allGoals_parenthesizer(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
@@ -636,12 +636,14 @@ lean_object* l_Lean_Parser_Tactic_change_formatter___closed__4;
 lean_object* l_Lean_Parser_Tactic_location___closed__4;
 lean_object* l_Lean_Parser_Tactic_location_formatter___closed__4;
 lean_object* l_Lean_Parser_Tactic_revert_parenthesizer___closed__4;
+extern lean_object* l_Lean_Parser_maxPrec;
 lean_object* l_Lean_Parser_Tactic_underscore_formatter___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_apply___elambda__1___closed__7;
 lean_object* l_Lean_Parser_Tactic_intro_formatter___closed__2;
 lean_object* l_Lean_Parser_Tactic_generalize___elambda__1___closed__10;
 lean_object* l_Lean_Parser_sepBy1Fn___at_Lean_Parser_Tactic_matchAlts___elambda__1___spec__5___boxed(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_majorPremise___closed__5;
+extern lean_object* l_Lean_Parser_Term_explicit_parenthesizer___closed__2;
 lean_object* l_Lean_Parser_Tactic_cases_formatter___closed__4;
 lean_object* l___regBuiltin_Lean_Parser_Tactic_nestedTacticBlockCurly_formatter___closed__1;
 lean_object* l_Lean_Parser_Tactic_matchAlts___elambda__1(lean_object*, lean_object*);
@@ -794,6 +796,7 @@ lean_object* l_Lean_PrettyPrinter_Formatter_withPosition_formatter(lean_object*,
 lean_object* l_Lean_Parser_Tactic_failIfSuccess_parenthesizer(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_subst_formatter___closed__4;
 lean_object* l_Lean_Parser_Term_optType___elambda__1(lean_object*, lean_object*);
+lean_object* l_Lean_Parser_Tactic_intros_formatter___closed__6;
 lean_object* l_Lean_Parser_Tactic_orelse;
 lean_object* l_Lean_Parser_Tactic_allGoals___closed__6;
 lean_object* l_Lean_Parser_Tactic_subst___closed__5;
@@ -1224,6 +1227,7 @@ lean_object* l_Lean_Parser_Tactic_nestedTacticBlock___elambda__1___closed__1;
 lean_object* l_Lean_Parser_Tactic_intro;
 lean_object* l_Lean_PrettyPrinter_Parenthesizer_many_parenthesizer(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 lean_object* l_Lean_Parser_Tactic_allGoals_formatter___closed__1;
+lean_object* l_Lean_Parser_Tactic_intros_parenthesizer___closed__5;
 lean_object* l_Lean_Parser_Tactic_intros_parenthesizer(lean_object*, lean_object*, lean_object*, lean_object*, lean_object*);
 extern lean_object* l_Lean_Parser_Parser_inhabited___closed__1;
 lean_object* l_Lean_Parser_sepBy1Fn___at_Lean_Parser_Tactic_inductionAlts___elambda__1___spec__3(lean_object*, lean_object*, uint8_t, uint8_t, lean_object*, lean_object*);
@@ -1564,6 +1568,70 @@ x_1 = l_Lean_Parser_Tactic_ident_x27___closed__3;
 return x_1;
 }
 }
+lean_object* l_Lean_Parser_manyAux___main___at_Lean_Parser_Tactic_intro___elambda__1___spec__1(lean_object* x_1, lean_object* x_2) {
+_start:
+{
+lean_object* x_3; lean_object* x_4; lean_object* x_5; lean_object* x_6; lean_object* x_7; lean_object* x_8; lean_object* x_9; 
+x_3 = lean_ctor_get(x_2, 0);
+lean_inc(x_3);
+x_4 = lean_array_get_size(x_3);
+lean_dec(x_3);
+x_5 = lean_ctor_get(x_2, 1);
+lean_inc(x_5);
+x_6 = l_Lean_Parser_termParser___closed__2;
+x_7 = l_Lean_Parser_maxPrec;
+lean_inc(x_1);
+x_8 = l_Lean_Parser_categoryParser___elambda__1(x_6, x_7, x_1, x_2);
+x_9 = lean_ctor_get(x_8, 3);
+lean_inc(x_9);
+if (lean_obj_tag(x_9) == 0)
+{
+lean_object* x_10; uint8_t x_11; 
+lean_dec(x_4);
+x_10 = lean_ctor_get(x_8, 1);
+lean_inc(x_10);
+x_11 = lean_nat_dec_eq(x_5, x_10);
+lean_dec(x_10);
+lean_dec(x_5);
+if (x_11 == 0)
+{
+x_2 = x_8;
+goto _start;
+}
+else
+{
+lean_object* x_13; lean_object* x_14; 
+lean_dec(x_1);
+x_13 = l_Lean_Parser_manyAux___main___closed__1;
+x_14 = l_Lean_Parser_ParserState_mkUnexpectedError(x_8, x_13);
+return x_14;
+}
+}
+else
+{
+lean_object* x_15; uint8_t x_16; 
+lean_dec(x_9);
+lean_dec(x_1);
+x_15 = lean_ctor_get(x_8, 1);
+lean_inc(x_15);
+x_16 = lean_nat_dec_eq(x_5, x_15);
+lean_dec(x_15);
+if (x_16 == 0)
+{
+lean_dec(x_5);
+lean_dec(x_4);
+return x_8;
+}
+else
+{
+lean_object* x_17; 
+x_17 = l_Lean_Parser_ParserState_restore(x_8, x_4, x_5);
+lean_dec(x_4);
+return x_17;
+}
+}
+}
+}
 lean_object* _init_l_Lean_Parser_Tactic_intro___elambda__1___closed__1() {
 _start:
 {
@@ -1673,64 +1741,26 @@ x_14 = lean_ctor_get(x_13, 3);
 lean_inc(x_14);
 if (lean_obj_tag(x_14) == 0)
 {
-lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; 
+lean_object* x_15; lean_object* x_16; lean_object* x_17; lean_object* x_18; lean_object* x_19; lean_object* x_20; lean_object* x_21; 
 x_15 = lean_ctor_get(x_13, 0);
 lean_inc(x_15);
 x_16 = lean_array_get_size(x_15);
 lean_dec(x_15);
-x_17 = lean_ctor_get(x_13, 1);
-lean_inc(x_17);
-x_18 = l_Lean_Parser_Tactic_ident_x27___elambda__1(x_1, x_13);
-x_19 = lean_ctor_get(x_18, 3);
-lean_inc(x_19);
-if (lean_obj_tag(x_19) == 0)
-{
-lean_object* x_20; lean_object* x_21; lean_object* x_22; lean_object* x_23; 
-lean_dec(x_17);
-x_20 = l_Lean_nullKind;
-x_21 = l_Lean_Parser_ParserState_mkNode(x_18, x_20, x_16);
-x_22 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_23 = l_Lean_Parser_ParserState_mkNode(x_21, x_22, x_10);
-return x_23;
+x_17 = l_Lean_Parser_manyAux___main___at_Lean_Parser_Tactic_intro___elambda__1___spec__1(x_1, x_13);
+x_18 = l_Lean_nullKind;
+x_19 = l_Lean_Parser_ParserState_mkNode(x_17, x_18, x_16);
+x_20 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
+x_21 = l_Lean_Parser_ParserState_mkNode(x_19, x_20, x_10);
+return x_21;
 }
 else
 {
-lean_object* x_24; uint8_t x_25; 
-lean_dec(x_19);
-x_24 = lean_ctor_get(x_18, 1);
-lean_inc(x_24);
-x_25 = lean_nat_dec_eq(x_24, x_17);
-lean_dec(x_24);
-if (x_25 == 0)
-{
-lean_object* x_26; lean_object* x_27; lean_object* x_28; lean_object* x_29; 
-lean_dec(x_17);
-x_26 = l_Lean_nullKind;
-x_27 = l_Lean_Parser_ParserState_mkNode(x_18, x_26, x_16);
-x_28 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_29 = l_Lean_Parser_ParserState_mkNode(x_27, x_28, x_10);
-return x_29;
-}
-else
-{
-lean_object* x_30; lean_object* x_31; lean_object* x_32; lean_object* x_33; lean_object* x_34; 
-x_30 = l_Lean_Parser_ParserState_restore(x_18, x_16, x_17);
-x_31 = l_Lean_nullKind;
-x_32 = l_Lean_Parser_ParserState_mkNode(x_30, x_31, x_16);
-x_33 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_34 = l_Lean_Parser_ParserState_mkNode(x_32, x_33, x_10);
-return x_34;
-}
-}
-}
-else
-{
-lean_object* x_35; lean_object* x_36; 
+lean_object* x_22; lean_object* x_23; 
 lean_dec(x_14);
 lean_dec(x_1);
-x_35 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_36 = l_Lean_Parser_ParserState_mkNode(x_13, x_35, x_10);
-return x_36;
+x_22 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
+x_23 = l_Lean_Parser_ParserState_mkNode(x_13, x_22, x_10);
+return x_23;
 }
 }
 else
@@ -1742,143 +1772,101 @@ return x_7;
 }
 else
 {
-lean_object* x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; lean_object* x_41; 
-x_37 = lean_ctor_get(x_2, 0);
-lean_inc(x_37);
-x_38 = lean_array_get_size(x_37);
-lean_dec(x_37);
-x_39 = lean_ctor_get(x_2, 1);
-lean_inc(x_39);
+lean_object* x_24; lean_object* x_25; lean_object* x_26; lean_object* x_27; lean_object* x_28; 
+x_24 = lean_ctor_get(x_2, 0);
+lean_inc(x_24);
+x_25 = lean_array_get_size(x_24);
+lean_dec(x_24);
+x_26 = lean_ctor_get(x_2, 1);
+lean_inc(x_26);
 lean_inc(x_1);
-x_40 = lean_apply_2(x_4, x_1, x_2);
+x_27 = lean_apply_2(x_4, x_1, x_2);
+x_28 = lean_ctor_get(x_27, 3);
+lean_inc(x_28);
+if (lean_obj_tag(x_28) == 0)
+{
+lean_dec(x_26);
+lean_dec(x_25);
+lean_dec(x_1);
+return x_27;
+}
+else
+{
+lean_object* x_29; lean_object* x_30; uint8_t x_31; 
+x_29 = lean_ctor_get(x_28, 0);
+lean_inc(x_29);
+lean_dec(x_28);
+x_30 = lean_ctor_get(x_27, 1);
+lean_inc(x_30);
+x_31 = lean_nat_dec_eq(x_30, x_26);
+lean_dec(x_30);
+if (x_31 == 0)
+{
+lean_dec(x_29);
+lean_dec(x_26);
+lean_dec(x_25);
+lean_dec(x_1);
+return x_27;
+}
+else
+{
+lean_object* x_32; lean_object* x_33; lean_object* x_34; lean_object* x_35; 
+lean_inc(x_26);
+x_32 = l_Lean_Parser_ParserState_restore(x_27, x_25, x_26);
+lean_dec(x_25);
+x_33 = lean_unsigned_to_nat(1024u);
+x_34 = l_Lean_Parser_checkPrecFn(x_33, x_1, x_32);
+x_35 = lean_ctor_get(x_34, 3);
+lean_inc(x_35);
+if (lean_obj_tag(x_35) == 0)
+{
+lean_object* x_36; lean_object* x_37; lean_object* x_38; lean_object* x_39; lean_object* x_40; lean_object* x_41; 
+x_36 = lean_ctor_get(x_34, 0);
+lean_inc(x_36);
+x_37 = lean_array_get_size(x_36);
+lean_dec(x_36);
+x_38 = l_Lean_Parser_Tactic_intro___elambda__1___closed__6;
+x_39 = l_Lean_Parser_Tactic_intro___elambda__1___closed__8;
+lean_inc(x_1);
+x_40 = l_Lean_Parser_nonReservedSymbolFnAux(x_38, x_39, x_1, x_34);
 x_41 = lean_ctor_get(x_40, 3);
 lean_inc(x_41);
 if (lean_obj_tag(x_41) == 0)
 {
-lean_dec(x_39);
-lean_dec(x_38);
-lean_dec(x_1);
-return x_40;
-}
-else
-{
-lean_object* x_42; lean_object* x_43; uint8_t x_44; 
-x_42 = lean_ctor_get(x_41, 0);
+lean_object* x_42; lean_object* x_43; lean_object* x_44; lean_object* x_45; lean_object* x_46; lean_object* x_47; lean_object* x_48; lean_object* x_49; 
+x_42 = lean_ctor_get(x_40, 0);
 lean_inc(x_42);
-lean_dec(x_41);
-x_43 = lean_ctor_get(x_40, 1);
-lean_inc(x_43);
-x_44 = lean_nat_dec_eq(x_43, x_39);
-lean_dec(x_43);
-if (x_44 == 0)
-{
+x_43 = lean_array_get_size(x_42);
 lean_dec(x_42);
-lean_dec(x_39);
-lean_dec(x_38);
+x_44 = l_Lean_Parser_manyAux___main___at_Lean_Parser_Tactic_intro___elambda__1___spec__1(x_1, x_40);
+x_45 = l_Lean_nullKind;
+x_46 = l_Lean_Parser_ParserState_mkNode(x_44, x_45, x_43);
+x_47 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
+x_48 = l_Lean_Parser_ParserState_mkNode(x_46, x_47, x_37);
+x_49 = l_Lean_Parser_mergeOrElseErrors(x_48, x_29, x_26);
+lean_dec(x_26);
+return x_49;
+}
+else
+{
+lean_object* x_50; lean_object* x_51; lean_object* x_52; 
+lean_dec(x_41);
 lean_dec(x_1);
-return x_40;
-}
-else
-{
-lean_object* x_45; lean_object* x_46; lean_object* x_47; lean_object* x_48; 
-lean_inc(x_39);
-x_45 = l_Lean_Parser_ParserState_restore(x_40, x_38, x_39);
-lean_dec(x_38);
-x_46 = lean_unsigned_to_nat(1024u);
-x_47 = l_Lean_Parser_checkPrecFn(x_46, x_1, x_45);
-x_48 = lean_ctor_get(x_47, 3);
-lean_inc(x_48);
-if (lean_obj_tag(x_48) == 0)
-{
-lean_object* x_49; lean_object* x_50; lean_object* x_51; lean_object* x_52; lean_object* x_53; lean_object* x_54; 
-x_49 = lean_ctor_get(x_47, 0);
-lean_inc(x_49);
-x_50 = lean_array_get_size(x_49);
-lean_dec(x_49);
-x_51 = l_Lean_Parser_Tactic_intro___elambda__1___closed__6;
-x_52 = l_Lean_Parser_Tactic_intro___elambda__1___closed__8;
-lean_inc(x_1);
-x_53 = l_Lean_Parser_nonReservedSymbolFnAux(x_51, x_52, x_1, x_47);
-x_54 = lean_ctor_get(x_53, 3);
-lean_inc(x_54);
-if (lean_obj_tag(x_54) == 0)
-{
-lean_object* x_55; lean_object* x_56; lean_object* x_57; lean_object* x_58; lean_object* x_59; 
-x_55 = lean_ctor_get(x_53, 0);
-lean_inc(x_55);
-x_56 = lean_array_get_size(x_55);
-lean_dec(x_55);
-x_57 = lean_ctor_get(x_53, 1);
-lean_inc(x_57);
-x_58 = l_Lean_Parser_Tactic_ident_x27___elambda__1(x_1, x_53);
-x_59 = lean_ctor_get(x_58, 3);
-lean_inc(x_59);
-if (lean_obj_tag(x_59) == 0)
-{
-lean_object* x_60; lean_object* x_61; lean_object* x_62; lean_object* x_63; lean_object* x_64; 
-lean_dec(x_57);
-x_60 = l_Lean_nullKind;
-x_61 = l_Lean_Parser_ParserState_mkNode(x_58, x_60, x_56);
-x_62 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_63 = l_Lean_Parser_ParserState_mkNode(x_61, x_62, x_50);
-x_64 = l_Lean_Parser_mergeOrElseErrors(x_63, x_42, x_39);
-lean_dec(x_39);
-return x_64;
-}
-else
-{
-lean_object* x_65; uint8_t x_66; 
-lean_dec(x_59);
-x_65 = lean_ctor_get(x_58, 1);
-lean_inc(x_65);
-x_66 = lean_nat_dec_eq(x_65, x_57);
-lean_dec(x_65);
-if (x_66 == 0)
-{
-lean_object* x_67; lean_object* x_68; lean_object* x_69; lean_object* x_70; lean_object* x_71; 
-lean_dec(x_57);
-x_67 = l_Lean_nullKind;
-x_68 = l_Lean_Parser_ParserState_mkNode(x_58, x_67, x_56);
-x_69 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_70 = l_Lean_Parser_ParserState_mkNode(x_68, x_69, x_50);
-x_71 = l_Lean_Parser_mergeOrElseErrors(x_70, x_42, x_39);
-lean_dec(x_39);
-return x_71;
-}
-else
-{
-lean_object* x_72; lean_object* x_73; lean_object* x_74; lean_object* x_75; lean_object* x_76; lean_object* x_77; 
-x_72 = l_Lean_Parser_ParserState_restore(x_58, x_56, x_57);
-x_73 = l_Lean_nullKind;
-x_74 = l_Lean_Parser_ParserState_mkNode(x_72, x_73, x_56);
-x_75 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_76 = l_Lean_Parser_ParserState_mkNode(x_74, x_75, x_50);
-x_77 = l_Lean_Parser_mergeOrElseErrors(x_76, x_42, x_39);
-lean_dec(x_39);
-return x_77;
-}
+x_50 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
+x_51 = l_Lean_Parser_ParserState_mkNode(x_40, x_50, x_37);
+x_52 = l_Lean_Parser_mergeOrElseErrors(x_51, x_29, x_26);
+lean_dec(x_26);
+return x_52;
 }
 }
 else
 {
-lean_object* x_78; lean_object* x_79; lean_object* x_80; 
-lean_dec(x_54);
+lean_object* x_53; 
+lean_dec(x_35);
 lean_dec(x_1);
-x_78 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
-x_79 = l_Lean_Parser_ParserState_mkNode(x_53, x_78, x_50);
-x_80 = l_Lean_Parser_mergeOrElseErrors(x_79, x_42, x_39);
-lean_dec(x_39);
-return x_80;
-}
-}
-else
-{
-lean_object* x_81; 
-lean_dec(x_48);
-lean_dec(x_1);
-x_81 = l_Lean_Parser_mergeOrElseErrors(x_47, x_42, x_39);
-lean_dec(x_39);
-return x_81;
+x_53 = l_Lean_Parser_mergeOrElseErrors(x_34, x_29, x_26);
+lean_dec(x_26);
+return x_53;
 }
 }
 }
@@ -1899,10 +1887,10 @@ lean_object* _init_l_Lean_Parser_Tactic_intro___closed__2() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
-x_1 = l_Lean_Parser_Tactic_ident_x27;
+x_1 = l_Lean_Parser_Term_explicit___closed__2;
 x_2 = lean_ctor_get(x_1, 0);
 lean_inc(x_2);
-x_3 = l_Lean_Parser_optionaInfo(x_2);
+x_3 = l_Lean_Parser_noFirstTokenInfo(x_2);
 return x_3;
 }
 }
@@ -1988,24 +1976,6 @@ x_6 = l_Lean_Parser_addBuiltinParser(x_2, x_3, x_4, x_5, x_1);
 return x_6;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_ident_x27_formatter___closed__1() {
-_start:
-{
-lean_object* x_1; 
-x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_underscore_formatter___boxed), 5, 0);
-return x_1;
-}
-}
-lean_object* l_Lean_Parser_Tactic_ident_x27_formatter(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
-_start:
-{
-lean_object* x_6; lean_object* x_7; lean_object* x_8; 
-x_6 = l_Lean_Parser_Level_ident_formatter___closed__1;
-x_7 = l_Lean_Parser_Tactic_ident_x27_formatter___closed__1;
-x_8 = l_Lean_PrettyPrinter_Formatter_orelse_formatter(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
-return x_8;
-}
-}
 lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__1() {
 _start:
 {
@@ -2034,40 +2004,32 @@ return x_2;
 lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__3() {
 _start:
 {
-lean_object* x_1; 
-x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_ident_x27_formatter), 5, 0);
-return x_1;
+lean_object* x_1; lean_object* x_2; 
+x_1 = l_Lean_Parser_antiquotNestedExpr_formatter___closed__2;
+x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_many_formatter), 6, 1);
+lean_closure_set(x_2, 0, x_1);
+return x_2;
 }
 }
 lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__4() {
 _start:
 {
-lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_formatter___closed__3;
-x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_optional_formatter), 6, 1);
-lean_closure_set(x_2, 0, x_1);
-return x_2;
-}
-}
-lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__5() {
-_start:
-{
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
 x_1 = l_Lean_Parser_Tactic_intro_formatter___closed__2;
-x_2 = l_Lean_Parser_Tactic_intro_formatter___closed__4;
+x_2 = l_Lean_Parser_Tactic_intro_formatter___closed__3;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_andthen_formatter), 7, 2);
 lean_closure_set(x_3, 0, x_1);
 lean_closure_set(x_3, 1, x_2);
 return x_3;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__6() {
+lean_object* _init_l_Lean_Parser_Tactic_intro_formatter___closed__5() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; 
 x_1 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
 x_2 = lean_unsigned_to_nat(1024u);
-x_3 = l_Lean_Parser_Tactic_intro_formatter___closed__5;
+x_3 = l_Lean_Parser_Tactic_intro_formatter___closed__4;
 x_4 = lean_alloc_closure((void*)(l_Lean_Parser_leadingNode_formatter___boxed), 8, 3);
 lean_closure_set(x_4, 0, x_1);
 lean_closure_set(x_4, 1, x_2);
@@ -2080,7 +2042,7 @@ _start:
 {
 lean_object* x_6; lean_object* x_7; lean_object* x_8; 
 x_6 = l_Lean_Parser_Tactic_intro_formatter___closed__1;
-x_7 = l_Lean_Parser_Tactic_intro_formatter___closed__6;
+x_7 = l_Lean_Parser_Tactic_intro_formatter___closed__5;
 x_8 = l_Lean_PrettyPrinter_Formatter_orelse_formatter(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
 return x_8;
 }
@@ -2104,24 +2066,6 @@ x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
 return x_5;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1() {
-_start:
-{
-lean_object* x_1; 
-x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_underscore_parenthesizer___boxed), 1, 0);
-return x_1;
-}
-}
-lean_object* l_Lean_Parser_Tactic_ident_x27_parenthesizer(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
-_start:
-{
-lean_object* x_6; lean_object* x_7; lean_object* x_8; 
-x_6 = l_Lean_Parser_Level_ident_parenthesizer___closed__1;
-x_7 = l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1;
-x_8 = l_Lean_PrettyPrinter_Parenthesizer_orelse_parenthesizer(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
-return x_8;
-}
-}
 lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__1() {
 _start:
 {
@@ -2138,40 +2082,32 @@ return x_4;
 lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__2() {
 _start:
 {
-lean_object* x_1; 
-x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_ident_x27_parenthesizer), 5, 0);
-return x_1;
+lean_object* x_1; lean_object* x_2; 
+x_1 = l_Lean_Parser_Term_explicit_parenthesizer___closed__2;
+x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_many_parenthesizer), 6, 1);
+lean_closure_set(x_2, 0, x_1);
+return x_2;
 }
 }
 lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__3() {
 _start:
 {
-lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__2;
-x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_optional_parenthesizer), 6, 1);
-lean_closure_set(x_2, 0, x_1);
-return x_2;
-}
-}
-lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__4() {
-_start:
-{
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
 x_1 = l_Lean_Parser_mkAntiquot_parenthesizer___rarg___closed__8;
-x_2 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__3;
+x_2 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__2;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_andthen_parenthesizer), 7, 2);
 lean_closure_set(x_3, 0, x_1);
 lean_closure_set(x_3, 1, x_2);
 return x_3;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__5() {
+lean_object* _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__4() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; 
 x_1 = l_Lean_Parser_Tactic_intro___elambda__1___closed__2;
 x_2 = lean_unsigned_to_nat(1024u);
-x_3 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__4;
+x_3 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__3;
 x_4 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_leadingNode_parenthesizer___boxed), 8, 3);
 lean_closure_set(x_4, 0, x_1);
 lean_closure_set(x_4, 1, x_2);
@@ -2184,7 +2120,7 @@ _start:
 {
 lean_object* x_6; lean_object* x_7; lean_object* x_8; 
 x_6 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__1;
-x_7 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__5;
+x_7 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__4;
 x_8 = l_Lean_PrettyPrinter_Parenthesizer_orelse_parenthesizer(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
 return x_8;
 }
@@ -2614,6 +2550,24 @@ x_6 = l_Lean_Parser_addBuiltinParser(x_2, x_3, x_4, x_5, x_1);
 return x_6;
 }
 }
+lean_object* _init_l_Lean_Parser_Tactic_ident_x27_formatter___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_underscore_formatter___boxed), 5, 0);
+return x_1;
+}
+}
+lean_object* l_Lean_Parser_Tactic_ident_x27_formatter(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
+_start:
+{
+lean_object* x_6; lean_object* x_7; lean_object* x_8; 
+x_6 = l_Lean_Parser_Level_ident_formatter___closed__1;
+x_7 = l_Lean_Parser_Tactic_ident_x27_formatter___closed__1;
+x_8 = l_Lean_PrettyPrinter_Formatter_orelse_formatter(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
+return x_8;
+}
+}
 lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__1() {
 _start:
 {
@@ -2642,32 +2596,40 @@ return x_2;
 lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__3() {
 _start:
 {
-lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_formatter___closed__3;
-x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_many_formatter), 6, 1);
-lean_closure_set(x_2, 0, x_1);
-return x_2;
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_ident_x27_formatter), 5, 0);
+return x_1;
 }
 }
 lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__4() {
 _start:
 {
+lean_object* x_1; lean_object* x_2; 
+x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__3;
+x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_many_formatter), 6, 1);
+lean_closure_set(x_2, 0, x_1);
+return x_2;
+}
+}
+lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__5() {
+_start:
+{
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
 x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__2;
-x_2 = l_Lean_Parser_Tactic_intros_formatter___closed__3;
+x_2 = l_Lean_Parser_Tactic_intros_formatter___closed__4;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_andthen_formatter), 7, 2);
 lean_closure_set(x_3, 0, x_1);
 lean_closure_set(x_3, 1, x_2);
 return x_3;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__5() {
+lean_object* _init_l_Lean_Parser_Tactic_intros_formatter___closed__6() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; 
 x_1 = l_Lean_Parser_Tactic_intros___elambda__1___closed__2;
 x_2 = lean_unsigned_to_nat(1024u);
-x_3 = l_Lean_Parser_Tactic_intros_formatter___closed__4;
+x_3 = l_Lean_Parser_Tactic_intros_formatter___closed__5;
 x_4 = lean_alloc_closure((void*)(l_Lean_Parser_leadingNode_formatter___boxed), 8, 3);
 lean_closure_set(x_4, 0, x_1);
 lean_closure_set(x_4, 1, x_2);
@@ -2680,7 +2642,7 @@ _start:
 {
 lean_object* x_6; lean_object* x_7; lean_object* x_8; 
 x_6 = l_Lean_Parser_Tactic_intros_formatter___closed__1;
-x_7 = l_Lean_Parser_Tactic_intros_formatter___closed__5;
+x_7 = l_Lean_Parser_Tactic_intros_formatter___closed__6;
 x_8 = l_Lean_PrettyPrinter_Formatter_orelse_formatter(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
 return x_8;
 }
@@ -2704,6 +2666,24 @@ x_5 = l_Lean_KeyedDeclsAttribute_addBuiltin___rarg(x_2, x_3, x_4, x_1);
 return x_5;
 }
 }
+lean_object* _init_l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1() {
+_start:
+{
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_underscore_parenthesizer___boxed), 1, 0);
+return x_1;
+}
+}
+lean_object* l_Lean_Parser_Tactic_ident_x27_parenthesizer(lean_object* x_1, lean_object* x_2, lean_object* x_3, lean_object* x_4, lean_object* x_5) {
+_start:
+{
+lean_object* x_6; lean_object* x_7; lean_object* x_8; 
+x_6 = l_Lean_Parser_Level_ident_parenthesizer___closed__1;
+x_7 = l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1;
+x_8 = l_Lean_PrettyPrinter_Parenthesizer_orelse_parenthesizer(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
+return x_8;
+}
+}
 lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__1() {
 _start:
 {
@@ -2720,32 +2700,40 @@ return x_4;
 lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__2() {
 _start:
 {
-lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__2;
-x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_many_parenthesizer), 6, 1);
-lean_closure_set(x_2, 0, x_1);
-return x_2;
+lean_object* x_1; 
+x_1 = lean_alloc_closure((void*)(l_Lean_Parser_Tactic_ident_x27_parenthesizer), 5, 0);
+return x_1;
 }
 }
 lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__3() {
 _start:
 {
+lean_object* x_1; lean_object* x_2; 
+x_1 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__2;
+x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_many_parenthesizer), 6, 1);
+lean_closure_set(x_2, 0, x_1);
+return x_2;
+}
+}
+lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__4() {
+_start:
+{
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
 x_1 = l_Lean_Parser_mkAntiquot_parenthesizer___rarg___closed__8;
-x_2 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__2;
+x_2 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__3;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_andthen_parenthesizer), 7, 2);
 lean_closure_set(x_3, 0, x_1);
 lean_closure_set(x_3, 1, x_2);
 return x_3;
 }
 }
-lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__4() {
+lean_object* _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__5() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; lean_object* x_4; 
 x_1 = l_Lean_Parser_Tactic_intros___elambda__1___closed__2;
 x_2 = lean_unsigned_to_nat(1024u);
-x_3 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__3;
+x_3 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__4;
 x_4 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_leadingNode_parenthesizer___boxed), 8, 3);
 lean_closure_set(x_4, 0, x_1);
 lean_closure_set(x_4, 1, x_2);
@@ -2758,7 +2746,7 @@ _start:
 {
 lean_object* x_6; lean_object* x_7; lean_object* x_8; 
 x_6 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__1;
-x_7 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__4;
+x_7 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__5;
 x_8 = l_Lean_PrettyPrinter_Parenthesizer_orelse_parenthesizer(x_6, x_7, x_1, x_2, x_3, x_4, x_5);
 return x_8;
 }
@@ -16274,7 +16262,7 @@ lean_object* _init_l_Lean_Parser_Tactic_inductionAlt_formatter___closed__3() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
-x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__3;
+x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__4;
 x_2 = l_Lean_Parser_Tactic_inductionAlt_formatter___closed__2;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_andthen_formatter), 7, 2);
 lean_closure_set(x_3, 0, x_1);
@@ -16286,7 +16274,7 @@ lean_object* _init_l_Lean_Parser_Tactic_inductionAlt_formatter___closed__4() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
-x_1 = l_Lean_Parser_Tactic_intro_formatter___closed__3;
+x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__3;
 x_2 = l_Lean_Parser_Tactic_inductionAlt_formatter___closed__3;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_andthen_formatter), 7, 2);
 lean_closure_set(x_3, 0, x_1);
@@ -16663,7 +16651,7 @@ lean_object* _init_l_Lean_Parser_Tactic_inductionAlt_parenthesizer___closed__3()
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
-x_1 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__2;
+x_1 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__3;
 x_2 = l_Lean_Parser_Tactic_inductionAlt_parenthesizer___closed__2;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_andthen_parenthesizer), 7, 2);
 lean_closure_set(x_3, 0, x_1);
@@ -16675,7 +16663,7 @@ lean_object* _init_l_Lean_Parser_Tactic_inductionAlt_parenthesizer___closed__4()
 _start:
 {
 lean_object* x_1; lean_object* x_2; lean_object* x_3; 
-x_1 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__2;
+x_1 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__2;
 x_2 = l_Lean_Parser_Tactic_inductionAlt_parenthesizer___closed__3;
 x_3 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_andthen_parenthesizer), 7, 2);
 lean_closure_set(x_3, 0, x_1);
@@ -20451,7 +20439,7 @@ lean_object* _init_l_Lean_Parser_Tactic_withIds_formatter___closed__1() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_formatter___closed__3;
+x_1 = l_Lean_Parser_Tactic_intros_formatter___closed__3;
 x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Formatter_many1_formatter), 6, 1);
 lean_closure_set(x_2, 0, x_1);
 return x_2;
@@ -20582,7 +20570,7 @@ lean_object* _init_l_Lean_Parser_Tactic_withIds_parenthesizer___closed__1() {
 _start:
 {
 lean_object* x_1; lean_object* x_2; 
-x_1 = l_Lean_Parser_Tactic_intro_parenthesizer___closed__2;
+x_1 = l_Lean_Parser_Tactic_intros_parenthesizer___closed__2;
 x_2 = lean_alloc_closure((void*)(l_Lean_PrettyPrinter_Parenthesizer_many1_parenthesizer), 6, 1);
 lean_closure_set(x_2, 0, x_1);
 return x_2;
@@ -23150,8 +23138,6 @@ lean_mark_persistent(l_Lean_Parser_Tactic_intro);
 res = l___regBuiltinParser_Lean_Parser_Tactic_intro(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
-l_Lean_Parser_Tactic_ident_x27_formatter___closed__1 = _init_l_Lean_Parser_Tactic_ident_x27_formatter___closed__1();
-lean_mark_persistent(l_Lean_Parser_Tactic_ident_x27_formatter___closed__1);
 l_Lean_Parser_Tactic_intro_formatter___closed__1 = _init_l_Lean_Parser_Tactic_intro_formatter___closed__1();
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_formatter___closed__1);
 l_Lean_Parser_Tactic_intro_formatter___closed__2 = _init_l_Lean_Parser_Tactic_intro_formatter___closed__2();
@@ -23162,15 +23148,11 @@ l_Lean_Parser_Tactic_intro_formatter___closed__4 = _init_l_Lean_Parser_Tactic_in
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_formatter___closed__4);
 l_Lean_Parser_Tactic_intro_formatter___closed__5 = _init_l_Lean_Parser_Tactic_intro_formatter___closed__5();
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_formatter___closed__5);
-l_Lean_Parser_Tactic_intro_formatter___closed__6 = _init_l_Lean_Parser_Tactic_intro_formatter___closed__6();
-lean_mark_persistent(l_Lean_Parser_Tactic_intro_formatter___closed__6);
 l___regBuiltin_Lean_Parser_Tactic_intro_formatter___closed__1 = _init_l___regBuiltin_Lean_Parser_Tactic_intro_formatter___closed__1();
 lean_mark_persistent(l___regBuiltin_Lean_Parser_Tactic_intro_formatter___closed__1);
 res = l___regBuiltin_Lean_Parser_Tactic_intro_formatter(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
-l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1 = _init_l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1();
-lean_mark_persistent(l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1);
 l_Lean_Parser_Tactic_intro_parenthesizer___closed__1 = _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__1();
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_parenthesizer___closed__1);
 l_Lean_Parser_Tactic_intro_parenthesizer___closed__2 = _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__2();
@@ -23179,8 +23161,6 @@ l_Lean_Parser_Tactic_intro_parenthesizer___closed__3 = _init_l_Lean_Parser_Tacti
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_parenthesizer___closed__3);
 l_Lean_Parser_Tactic_intro_parenthesizer___closed__4 = _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__4();
 lean_mark_persistent(l_Lean_Parser_Tactic_intro_parenthesizer___closed__4);
-l_Lean_Parser_Tactic_intro_parenthesizer___closed__5 = _init_l_Lean_Parser_Tactic_intro_parenthesizer___closed__5();
-lean_mark_persistent(l_Lean_Parser_Tactic_intro_parenthesizer___closed__5);
 l___regBuiltin_Lean_Parser_Tactic_intro_parenthesizer___closed__1 = _init_l___regBuiltin_Lean_Parser_Tactic_intro_parenthesizer___closed__1();
 lean_mark_persistent(l___regBuiltin_Lean_Parser_Tactic_intro_parenthesizer___closed__1);
 res = l___regBuiltin_Lean_Parser_Tactic_intro_parenthesizer(lean_io_mk_world());
@@ -23223,6 +23203,8 @@ lean_mark_persistent(l_Lean_Parser_Tactic_intros);
 res = l___regBuiltinParser_Lean_Parser_Tactic_intros(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
+l_Lean_Parser_Tactic_ident_x27_formatter___closed__1 = _init_l_Lean_Parser_Tactic_ident_x27_formatter___closed__1();
+lean_mark_persistent(l_Lean_Parser_Tactic_ident_x27_formatter___closed__1);
 l_Lean_Parser_Tactic_intros_formatter___closed__1 = _init_l_Lean_Parser_Tactic_intros_formatter___closed__1();
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_formatter___closed__1);
 l_Lean_Parser_Tactic_intros_formatter___closed__2 = _init_l_Lean_Parser_Tactic_intros_formatter___closed__2();
@@ -23233,11 +23215,15 @@ l_Lean_Parser_Tactic_intros_formatter___closed__4 = _init_l_Lean_Parser_Tactic_i
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_formatter___closed__4);
 l_Lean_Parser_Tactic_intros_formatter___closed__5 = _init_l_Lean_Parser_Tactic_intros_formatter___closed__5();
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_formatter___closed__5);
+l_Lean_Parser_Tactic_intros_formatter___closed__6 = _init_l_Lean_Parser_Tactic_intros_formatter___closed__6();
+lean_mark_persistent(l_Lean_Parser_Tactic_intros_formatter___closed__6);
 l___regBuiltin_Lean_Parser_Tactic_intros_formatter___closed__1 = _init_l___regBuiltin_Lean_Parser_Tactic_intros_formatter___closed__1();
 lean_mark_persistent(l___regBuiltin_Lean_Parser_Tactic_intros_formatter___closed__1);
 res = l___regBuiltin_Lean_Parser_Tactic_intros_formatter(lean_io_mk_world());
 if (lean_io_result_is_error(res)) return res;
 lean_dec_ref(res);
+l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1 = _init_l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1();
+lean_mark_persistent(l_Lean_Parser_Tactic_ident_x27_parenthesizer___closed__1);
 l_Lean_Parser_Tactic_intros_parenthesizer___closed__1 = _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__1();
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_parenthesizer___closed__1);
 l_Lean_Parser_Tactic_intros_parenthesizer___closed__2 = _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__2();
@@ -23246,6 +23232,8 @@ l_Lean_Parser_Tactic_intros_parenthesizer___closed__3 = _init_l_Lean_Parser_Tact
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_parenthesizer___closed__3);
 l_Lean_Parser_Tactic_intros_parenthesizer___closed__4 = _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__4();
 lean_mark_persistent(l_Lean_Parser_Tactic_intros_parenthesizer___closed__4);
+l_Lean_Parser_Tactic_intros_parenthesizer___closed__5 = _init_l_Lean_Parser_Tactic_intros_parenthesizer___closed__5();
+lean_mark_persistent(l_Lean_Parser_Tactic_intros_parenthesizer___closed__5);
 l___regBuiltin_Lean_Parser_Tactic_intros_parenthesizer___closed__1 = _init_l___regBuiltin_Lean_Parser_Tactic_intros_parenthesizer___closed__1();
 lean_mark_persistent(l___regBuiltin_Lean_Parser_Tactic_intros_parenthesizer___closed__1);
 res = l___regBuiltin_Lean_Parser_Tactic_intros_parenthesizer(lean_io_mk_world());