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Proof step 38 from proof spawn-sat-rg-strnger (previous step)

GInv(s), ¬ Pr(n0 + 1)(s) ∧ ¬ Prton(n0)(s) ∨ ¬ Prton(n0)(s) ∧ ¬ Pr(n0 + 1)(s), ∀ m0. m0 ≤ n0 + 1 → Pr(m0)(s) ⊦ Poton(n0 + 1)(s)

User applied rule case distinction

And obtained the following new goals

Proof step 39:
¬ Pr(n0 + 1)(s) ∧ ¬ Prton(n0)(s), GInv(s), ∀ m0. m0 ≤ n0 + 1 → Pr(m0)(s) ⊦ Poton(n0 + 1)(s)
Proof step 41:
¬ Prton(n0)(s) ∧ ¬ Pr(n0 + 1)(s), GInv(s), ∀ m0. m0 ≤ n0 + 1 → Pr(m0)(s) ⊦ Poton(n0 + 1)(s)

Rule argument

pos: left 2

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