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Proof step 5 from proof nonumsimp-mod-neq-05 (previous step)

∀ n, m. n * m + m = (n * m1 + m1) + n → n = 0, n * m + m = (n * m1 +1 + m1 +1) + n ⊦ n = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
n * m + m = 2 * n + m1 * n + m1 + 1, ∀ n, m. n * m + m = (n * m1 + m1) + n → n = 0 ⊦ n = 0

Rule argument

Additional information

Used simplifier rules: rsucc-01: ⊦ (m + 1) * n = m * n + n;%mult-a: ⊦ m0 * m * n = (m0 * m) * n;%mult-c: ⊦ m * n = n * m;%two-02: ⊦ m + m = 2 * m;%c: ⊦ m + n = n + m; from specification nat-basic2%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic2%succ: ⊦ m +1 = m + 1; from specification nat-basic2