20 lines
351 B
Text
20 lines
351 B
Text
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beginend_bug.lean:7:2: error: tactic failed
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A : Type,
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a : A,
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b : A,
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c : A,
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Hab : a = b,
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Hbc : b = c
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⊢ a = ?M_1
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A : Type,
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a : A,
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b : A,
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c : A,
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Hab : a = b,
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Hbc : b = c
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⊢ ?M_1 = c
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beginend_bug.lean:9:0: error: failed to add declaration 'foo' to environment, value has metavariables
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λ (A : Type) (a b c : A) (Hab : a = b) (Hbc : b = c),
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?M_1
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