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Proof step 3 from proof progress-left-aux (previous step)

□ (R1(pm, S', S'') ∧ R2(pm, S', S'')), [:S | Boolvar ∨ false ::- [PL ¬ Boolvar until P(pm, S) ∧ R1(pm, S', S'') -+-> (last ⊃ Post1(pm, s, S);G1(pm, S, S'))] ∥ false ::- [PL R2(pm, S', S'') -+-> (last ⊃ Post2(pm, s, S);G2(pm, S, S'))] ], ◇ Boolvar, RG-restr(pm, R1, G1, Pre1, Post1, I, R2, G2, Pre2, Post2), stable(pm, I, R1), stable(pm, I, R2), I(pm, S), Pre1(pm, s), Pre2(pm, s), P-restr(pm, P, I, R1) ⊦ ◇ P(pm, S)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
□ (R1(pm, S', S'') ∧ R2(pm, S', S'')), ◇ Boolvar, [:S | Boolvar ::- [PL ¬ Boolvar until P(pm, S) ∧ R1(pm, S', S'') -+-> (last ⊃ Post1(pm, s, S);G1(pm, S, S'))] ∥ false ::- [PL R2(pm, S', S'') -+-> (last ⊃ Post2(pm, s, S);G2(pm, S, S'))] ], RG-restr(pm, R1, G1, Pre1, Post1, I, R2, G2, Pre2, Post2), stable(pm, I, R1), stable(pm, I, R2), I(pm, S), Pre1(pm, s), Pre2(pm, s), P-restr(pm, P, I, R1) ⊦ ◇ P(pm, S)

Proof step 3 from proof progress-left-aux (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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