12 lines
218 B
Text
12 lines
218 B
Text
crash.lean:9:17: error: invalid have-expression, term
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H
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has type
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P
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but is expected to have type
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¬P
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crash.lean:10:12: error: don't know how to synthesize placeholder
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context:
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P : Prop,
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H : P,
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H' : ¬P
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⊢ Sort ?
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