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Proof step 1 from proof two-loup-13 (conclusion)

⊦ (m + n) / 2 < m → ¬ (m + n) / 2 < n

Heuristic simplifier applied rule simplifier

And obtained the following new goals

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

Rule argument

Additional information

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