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Proof step 119 from proof spawn-sat-rg-strnger (previous step)

□ (Outf = Outf' ∧ Inpf = Inpf'), [:S | [PL GInv(S) ∧ Pr(n0 + 1)(S) ∧ (Ry(n0 + 1)(S', S'') ∧ (GInv(S') → GInv(S''))) -+-> (last ⊃ Po(n0 + 1)(S) ∧ GInv(S);Gr(n0 + 1)(S, S') ∧ ¬ blocked ∧ (GInv(S) → GInv(S'))) ] ∥ [PL ¬ GInv(S) ∨ ¬ Prton(n0)(S)] ], ∀ m. m ≤ n0 + 1 → Pr(m)(S), GInv(S), ¬ Prton(n0)(S) ⊦ (Rton(n0 + 1)(S', S'') ∧ (GInv(S') → GInv(S''))) -+-> (last ⊃ Poton(n0 + 1)(S) ∧ GInv(S);Gton(n0 + 1)(S, S') ∧ ¬ blocked ∧ (GInv(S) → GInv(S')))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 120:
⊦ Prton(n)(s) ↔ (∀ m. m ≤ n → Pr(m)(s))
Proof step 121:
[:S | [PL GInv(S) ∧ Pr(n0 + 1)(S) ∧ (Ry(n0 + 1)(S', S'') ∧ (GInv(S') → GInv(S''))) -+-> (last ⊃ Po(n0 + 1)(S) ∧ GInv(S);Gr(n0 + 1)(S, S') ∧ ¬ blocked ∧ (GInv(S) → GInv(S'))) ] ∥ [PL ¬ GInv(S) ∨ ¬ Prton(n0)(S)] ], □ (Outf = Outf' ∧ Inpf = Inpf'), ∀ m. m ≤ n0 + 1 → Pr(m)(S), GInv(S), ∃ m. ¬(m ≤ n0 → Pr(m)(S)) ⊦ (Rton(n0 + 1)(S', S'') ∧ (GInv(S') → GInv(S''))) -+-> (last ⊃ Poton(n0 + 1)(S) ∧ GInv(S);Gton(n0 + 1)(S, S') ∧ ¬ blocked ∧ (GInv(S) → GInv(S')))

Rule argument

spec: inst: name: prton-def seq: ⊦ Prton(n)(s) ↔ (∀ m. m ≤ n → Pr(m)(s)) subst: [s, n] → [S, n0] flags: rewrite, current

Additional information

Used terms: S, n0