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test: test “motive is not type correct” (#3122)

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Joachim Breitner 2023-12-28 16:28:17 +01:00 • committed by GitHub
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8
tests/lean/motiveNotTypeCorect.lean Normal file
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inductive D : Nat -> Type
def mwe (t : Nat) (f : Nat -> Nat) (h : f t = t)
(d : D (f t))
(P : (t : Nat) -> D t -> Prop)
: P (f t) d
:= by
rw [h] -- tactic 'rewrite' failed, motive is not type correct
sorry

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tests/lean/motiveNotTypeCorect.lean.expected.out Normal file
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motiveNotTypeCorect.lean:7:6-7:7: error: tactic 'rewrite' failed, motive is not type correct
t : Nat
f : Nat → Nat
h : f t = t
d : D (f t)
P : (t : Nat) → D t → Prop
⊢ P (f t) d