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theorems / nat_succ_injective

Successor is injective

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Posted about 1 month ago · proven 20 days ago

Theorem & proof · nat_succ_injective.lean · ✓ verified
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import Mathlib

theorem nat_succ_injective {m n : Nat} (h : m + 1 = n + 1) : m = n :=Nat.succ.inj h
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