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Proof step 14 from proof fair-never-violates-left-rely (previous step)

□ (CRelyto(n + 1, Act', CS', Act'', CS'') ∧ CInv(n0, Act', CS') ∧ CInv(n0, Act'', CS'')), [:Act, CS | [PL Act = act ∧ CS = cs] ∥ [PL (CRelyto(n, Act', CS', Act'', CS'') ∧ (CInv(n0, Act', CS') → CInv(n0, Act'', CS''))) -+-> (last ⊃ CInv(n0, Act, CS);CGuarto(n, Act, CS, Act', CS') ∧ (CInv(n0, Act, CS) → CInv(n0, Act', CS'))) ] ], n0 ≠ 0, Init(cs1), RG-restr (n0, λ n0, act, cs, act0, cs0. CRely(n + 1, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs, act0, cs0. CGuar(n + 1, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs. CInit(n + 1, act, cs) ∧ CInv(n0, act, cs), λ n, act, cs, act0, cs0. CInv(n, act0, cs0), CInv, λ n0, act, cs, act0, cs0. CRelyto(n, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs, act0, cs0. CGuarto(n, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs. CInitto(n, act, cs) ∧ CInv(n0, act, cs), λ n, act, cs, act0, cs0. CInv(n, act0, cs0)), CInv(n0, act0, cs0), CRely(n + 1, act0, cs0, Act, CS), CInv(n0, Act, CS), n < n0, ¬ CRely(n + 1, act0, cs0, act, cs) ∨ ¬ CInv(n0, act, cs), ∀ n. Idle(n, cs1) ⊦ CInitto(n, λ n. false, cs1) ∧ CInv(n0, λ n. false, cs1) ∧ □ ( (CRely(n + 1, Act', CS', Act'', CS'') ∧ (CInv(n0, Act', CS') → CInv(n0, Act'', CS''))) ∧ CRelyto(n, Act', CS', Act'', CS'') ∧ (CInv(n0, Act', CS') → CInv(n0, Act'', CS''))) ∧ ¬(CRely(n + 1, act0, cs0, act, cs) ∧ (CInv(n0, act0, cs0) → CInv(n0, act, cs))) ∧ (CInv(n0, act0, cs0) → CInv(n0, Act, CS))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
□ (CRelyto(n + 1, Act', CS', Act'', CS'') ∧ CInv(n0, Act', CS') ∧ CInv(n0, Act'', CS'')), [:Act, CS | [PL Act = act ∧ CS = cs] ∥ [PL (CRelyto(n, Act', CS', Act'', CS'') ∧ (CInv(n0, Act', CS') → CInv(n0, Act'', CS''))) -+-> (last ⊃ CInv(n0, Act, CS);CGuarto(n, Act, CS, Act', CS') ∧ (CInv(n0, Act, CS) → CInv(n0, Act', CS'))) ] ], n0 ≠ 0, Init(cs1), RG-restr (n0, λ n0, act, cs, act0, cs0. CRely(n + 1, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs, act0, cs0. CGuar(n + 1, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs. CInit(n + 1, act, cs) ∧ CInv(n0, act, cs), λ n, act, cs, act0, cs0. CInv(n, act0, cs0), CInv, λ n0, act, cs, act0, cs0. CRelyto(n, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs, act0, cs0. CGuarto(n, act, cs, act0, cs0) ∧ (CInv(n0, act, cs) → CInv(n0, act0, cs0)), λ n0, act, cs. CInitto(n, act, cs) ∧ CInv(n0, act, cs), λ n, act, cs, act0, cs0. CInv(n, act0, cs0)), CInv(n0, act0, cs0), CRely(n + 1, act0, cs0, Act, CS), CInv(n0, Act, CS), n < n0, ¬ CRely(n + 1, act0, cs0, act, cs) ∨ ¬ CInv(n0, act, cs), ∀ n. Idle(n, cs1), ¬(CInitto(n, λ n. false, cs1) ∧ CInv(n0, λ n. false, cs1)) ⊦

Rule argument

Additional information

Used simplifier rules: CRelytosucc-CRely: ⊦ CRelyto(m + 1, act, cs, act0, cs0) → (¬ CRely(m + 1, act, cs, act0, cs0) ↔ false);%CRelytosucc-CRelyto: ⊦ CRelyto(m + 1, act, cs, act0, cs0) → (¬ CRelyto(m, act, cs, act0, cs0) ↔ false);%c: ⊦ m + n = n + m; from specification nat-basic2%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic2