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Proof step 27 from proof n2s-zero (previous step)

('3' ' + '4' ' + '5' ' + '6' ' + '7' ' + '8' ' + '9' ')[m0 - 1] ' = "0", m0 < 8 ⊦ m0 = 0

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Rule argument

spec: nat inst: name: elim-pred-c seq: n ≠ 0 ⊦ m = n - 1 ↔ n = m + 1 subst: [n, m] → [m0, m] flags:

Additional information

Used simplifier rules: n ≠ 0 ⊦ m = n - 1 ↔ n = m + 1; (elim) Used terms: m0, m