| (last ⊃ Po(n0 + 1)(S) ∧ Poton(n0)(S) ∧ GInv(S);(Gr(n0 + 1)(S, S') ∨ Gton(n0)(S, S')) ∧ (GInv(S) → GInv(S')) ∧ ¬ blocked), □ (Outf = Outf' ∧ Inpf = Inpf') ⊦ Gton(n0 + 1)(S, S') ∧ ¬ blocked ∧ (GInv(S) → GInv(S')), last |
□ (Outf = Outf' ∧ Inpf = Inpf'), ¬ Gton(n0 + 1)(S, S'), Gr(n0 + 1)(S, S') ∨ Gton(n0)(S, S'), GInv(S) → GInv(S') ⊦ last, blocked