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Proof step 2 from proof l-06 (previous step)

m = m0 + n0, n < n0 ⊦ m0 + n < m

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: l: ⊦ m + n < m + n0 ↔ n < n0;%ls-04: ⊦ m < n ↔ ¬(m = n ∨ n < m);%ls-02: ⊦ m < n → ¬ n < m;%a: ⊦ (m + n0) + n1 = m + n0 + n1;%c: ⊦ m + n = n + m;