9 lines
241 B
Text
9 lines
241 B
Text
gen_bug.lean:9:2: error: tactic failed
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A B : Type,
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a : A,
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b : B,
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H : @heq A a B b
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⊢ @heq B b A a
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gen_bug.lean:12:0: error: failed to add declaration 'tst' to environment, value has metavariables
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λ (A B : Type) (a : A) (b : B),
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?M_1
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