lean4-htt/tests/lean/elab15.lean.expected.out
2016-07-31 11:56:52 -07:00

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