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Proof step 11 from proof remove-insert-inverse (conclusion)

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

System applied rule normalize

And obtained the following new goals

Proof step 10:
r ∈ rx, r ≠ head, r ≠ tail, ((dls(head, prev, x, rx, next, tail) * P))(H) ⊦ ⟪remove(r; H)⟫ ⟪insert(r; H)⟫ ((dls(head, prev, x, rx, next, tail) * P))(H)

Rule argument

Additional information

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