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Proof step 6 from proof spawn-rg-total-correct-strng (previous step)

□ (Rton(n)(S', S'') ∧ GInv(S) ∧ GInv(S')) ⊦ ◇ last, □ GInv(S'')

User applied rule VD induction

And obtained the following new goals

Proof step 7:
N = N'' +1 until ¬ GInv(S''), □ (Rton(n)(S', S'') ∧ GInv(S) ∧ GInv(S')), INDHYP-nat0(N) ⊦ ◇ last

Rule argument

indvar: □ GInv(S'') wfpred: <

Additional information

Used simplifier rules: <; (wellfounded) Used terms: INDHYP-nat0(N)