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Proof step 23 from proof remove-insert-inverse-twice (conclusion)

r0 ≠ r1, r0 ∈ rx, r0 ≠ head, r0 ≠ tail, r1 ∈ rx, r1 ≠ head, r1 ≠ tail, ((dls(head, prev, x, rx, next, tail) * P))(H) ⊦ ⟪remove(r0; H); remove(r1; H); insert(r1; H); insert(r0; H)⟫ ((dls(head, prev, x, rx, next, tail) * P))(H)

System applied rule normalize

And obtained the following new goals

Proof step 22:
r0 ≠ r1, r0 ∈ rx, r0 ≠ head, r0 ≠ tail, r1 ∈ rx, r1 ≠ head, r1 ≠ tail, ((dls(head, prev, x, rx, next, tail) * P))(H) ⊦ ⟪remove(r0; H)⟫ ⟪remove(r1; H); insert(r1; H); insert(r0; H)⟫ ((dls(head, prev, x, rx, next, tail) * P))(H)

Rule argument

Additional information

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