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Proof step 8 from proof spawn-rg-total-correct-strng (previous step)

□ (Rton(n)(S', S'') ∧ GInv(S) ∧ GInv(S')), ¬ GInv(S) ∨ n0 = N +1 ∧ N = N'' +1 until ¬ GInv(S''), INDHYP-nat0(n0), ¬ false, boolvar → s = s0 ∧ n0 = n1, Rton(n)(s0, S), GInv(s), GInv(s0) ⊦ ◇ last

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
□ (Rton(n)(S', S'') ∧ GInv(S) ∧ GInv(S')), ¬ GInv(S) ∨ n0 = N + 1 ∧ N = N'' + 1 until ¬ GInv(S''), INDHYP-nat0(n0), Rton(n)(s0, S), GInv(s), GInv(s0), boolvar → s = s0 ∧ n0 = n1 ⊦ ◇ last

Rule argument

Additional information

Used simplifier rules: succ: ⊦ m +1 = m + 1; from specification nat-basic2