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

⊦ m = 0, m = 1, m -1 -1 < m

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: psh-06: ⊦ n ≠ 0 ∧ n ≠ 1 → (n -1 -1 < m ↔ n < m +1 +1);%succ: ⊦ m +1 = m + 1;%a: ⊦ (m + n0) + n1 = m + n0 + n1;%c: ⊦ m + n = n + m;%ls-04: ⊦ m < n ↔ ¬(m = n ∨ n < m);%eq-02: ⊦ m = m + n ↔ n = 0;%l-02: ⊦ ¬ m + n < m;