lean2/tests/lean/bad10.lean
Leonardo de Moura 502d9f47ac test(tests/lean): new test full of holes
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-02 16:31:52 -08:00

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SetOption pp::implicit true.
SetOption pp::colors false.
Variable N : Type.
Definition T (a : N) (f : _ -> _) (H : f a == a) : f (f _) == f _ :=
SubstP (fun x : N, f (f a) == _) (Refl (f (f _))) H.
Show Environment 1.