lean4-htt/old_tests/tests/lean/elab15.lean.expected.out
2018-04-10 12:56:55 -07:00

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λ (A : Type u) (a b c d : A) (H₁ : eq a b) (H₂ : eq c b) (H₃ : eq d c),
have this : eq a c, from eq.trans H₁ (eq.symm H₂),
show eq a d, from eq.trans this (eq.symm H₃) :
∀ (A : Type u) (a b c d : A), eq a b → eq c b → eq d c → eq a d