09bc477016
closes #3022 With this commit, given the declaration ``` def foo : Nat → Nat | 0 => 2 | n + 1 => foo n ``` when we unfold `foo (n+1)`, we now obtain `foo n` instead of `foo (Nat.add n 0)`.
12 lines
256 B
Text
12 lines
256 B
Text
unfold1.lean:22:4-22:8: error: simp made no progress
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case succ
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x : Nat
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ih : isEven (2 * x) = true
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⊢ (match 2 * Nat.succ x with
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| 0 => true
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| Nat.succ n => isOdd n) =
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true
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case succ
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x : Nat
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ih : isEven (2 * x) = true
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⊢ isEven (2 * x) = true
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