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Proof step 65 from proof rg-restr1 (previous step)

m ≤ n0, ∀ n. n ≠ m + 1 → Ry(n)(s4, s4) ⊦ Ry(m)(s4, s4)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 2 terms: m

Additional information

Used simplifier rules: eq: ⊦ m = m + n ↔ n = 0; from specification nat-basic2%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic2%c: ⊦ m + n = n + m; from specification nat-basic2 Used terms: m