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Proof step 20 from proof hasSharing-def-better (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 16:
⊦ sks ≠ [] ∧ sks0 ≠ [] → st[r -- (sks + sks0)] = st[st[r -- sks] .refval -- sks0]
Proof step 19:
sks ≠ [] ∧ sks ≠ [], st[r0 -- sks] = refval(r0), fits(r0, sks, st) ⊦ r0 = jvmref, sks = [], fits(r0, sks + sks, st) ∧ refval(r0) = st[st[r0 -- sks] .refval -- sks]

Rule argument

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

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (sks, sks, r0, st)]]