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Proof step 8 from proof ADD-preserves-INV-INVR (previous step)

⟪ADD(succ(v); V, N)⟫ INV(C -- v, N, V, n, source), INV(C, N, V, n, source), v ∈ C, INVR(C, N, V, n, n0, source, dest), v ≠ dest ⊦ ⟪ADD(succ(v); V, N)⟫ (INV(C -- v, N, V, n, source) ∧ INVR(C -- v, N, V, n, n0, source, dest))

Heuristic contract and execute applied rule execute call

And obtained the following new goals

Proof step 7:
〈ADD(succ(v); V, N)〉 (V = S ∧ N = S0), ⟪ADD(succ(v); V, N)⟫ INV(C -- v, N, V, n, source), INV(C, N, V, n, source), v ∈ C, INVR(C, N, V, n, n0, source, dest), v ≠ dest, INV(C -- v, S0, S, n, source), ¬ INV(C -- v, S0, S, n, source) ∨ ¬ INVR(C -- v, S0, S, n, n0, source, dest) ⊦

Rule argument

[fmaposlist-arg: (pos: left 1, pos: right 1)]

Additional information

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