lean4-htt/tests/lean/run/thmIsProp.lean
Leonardo de Moura 2652cc18b8
chore: error messages consistency (#10143)
This PR standardizes error messages by quoting names with backticks. The
changes were automated, so some cases may still be missing.
2025-08-26 17:55:43 +00:00

57 lines
839 B
Text

import Lean
open Lean
/--
error: (kernel) type of theorem 'bad' is not a proposition
Nat
-/
#guard_msgs (error) in
run_meta do
addDecl <| .thmDecl {
name := `bad
levelParams := []
type := mkConst ``Nat
value := toExpr 10
}
theorem foo : 10 = 10 := rfl
where aux : Nat := 20
/--
info: def foo.aux : Nat :=
20
-/
#guard_msgs in
#print foo.aux
theorem foo2 : 10 = 10 :=
let rec aux (x : Nat) : Nat := x + 1
rfl
/--
info: def foo2.aux : Nat → Nat :=
fun x => x + 1
-/
#guard_msgs in
#print foo2.aux
/--
error: type of theorem `ugly` is not a proposition
Nat
-/
#guard_msgs (error) in
theorem ugly : Nat := 10
/--
error: type of theorem `g` is not a proposition
Nat → Nat
-/
#guard_msgs (error) in
mutual
theorem f (x : Nat) : x = x := rfl
theorem g (x : Nat) : Nat := x + 1
end