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Proof step 18 from proof hasSharing-def-better (previous step)

st[r0 -- sks] = refval(r0), fits(r0, sks, st) ⊦ sks = [], r0 = jvmref, fits(r0, sks + sks, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: fits-append antecedent: succedent: fits(r, sks + sks0, st) ↔ fits(r, sks, st) ∧ fits(st[r -- sks] .refval, sks0, st) substlist: [st, sks0, sks, r] → [st, sks, sks, r0] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((1, 0, 2)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r])], [EXTRATERMS : (st, sks, sks, r0)]]