6 lines
171 B
Text
6 lines
171 B
Text
example (p : Nat → Prop) (h : ∀ n, p (n+1) = p n) : (p m ↔ p 0) := by
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induction m
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case succ ih =>
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rw [h, ih]
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exact Iff.rfl
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case zero => exact Iff.rfl
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