lean4-htt/tests/lean/run/proofAsSorry.lean
jrr6 62f14514da
refactor: update built-in tactic error messages (#9633)
This PR updates various error messages produced by or associated with
built-in tactics and adapts their formatting to current conventions.
2025-07-31 14:16:57 +00:00

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set_option debug.proofAsSorry true
set_option pp.mvars false
/--
error: Type mismatch
rfl
has type
?_ = ?_
but is expected to have type
2 + 2 = 5
-/
#guard_msgs in
example : 2 + 2 = 5 := rfl -- This is not a theorem
/-- warning: declaration uses 'sorry' -/
#guard_msgs in
theorem ex : 2 + 2 = 5 := id rfl -- id rfl to avoid the rfl attribute kicking in
#guard_msgs in
def data (w : Nat) : String := toString w
/-- info: "37" -/
#guard_msgs in
#eval data 37
/-- warning: declaration uses 'sorry' -/
#guard_msgs in
theorem tst1 : 0 + x = 1*x + 0 := by
simp
/-- warning: declaration uses 'sorry' -/
#guard_msgs in
theorem tst2 : ∀ x, 0 + x = 1*x + 0 := by
intro x
simp
/-- warning: declaration uses 'sorry' -/
#guard_msgs in
theorem tst3 : x = 2*x + 1 := by
rfl
#guard_msgs in
def concatSelf (as : List α) := as ++ as
/-- info: [1, 2, 3, 1, 2, 3] -/
#guard_msgs in
#eval concatSelf [1, 2, 3]