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Proof step 2 from proof succ-03 (previous step)

m < n ⊦ m + 1 = n, m + 1 < n

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: neq-01: ⊦ m ≠ n → (m < n ↔ ¬ n < m);%s-04: ⊦ m < n + 1 ↔ ¬ n < m;%a: ⊦ (m + n0) + n1 = m + n0 + n1;%c: ⊦ m + n = n + m;