15 lines
417 B
Text
15 lines
417 B
Text
kernel_ex.lean:7:4: error: kernel failed to type check declaration 't' this is usually due to a buggy tactic or a bug in the builtin elaborator
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elaborated type:
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ℕ → ℕ
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elaborated value:
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λ (y : ℕ), let x : ℕ := 1 + y in I tt
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nested exception message:
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type mismatch at application
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I tt
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term
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tt
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has type
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bool
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but is expected to have type
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ℕ
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kernel_ex.lean:7:0: warning: declaration 't' uses sorry
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