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Proof step 1 from proof two-loup-07 (conclusion)

⊦ m < n → ¬ n + 1 < (m + n) / 2

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
n + 1 < (m + n) / 2, m < n ⊦ (m + n) / 2 = 0, n = 0

Rule argument

Additional information

Used simplifier rules: f: ⊦ m < n → n ≠ 0; (forward) from specification nat-basic1