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Proof step 8 from proof unchanged-array-forward (previous step)

st[r -- i '] = refval(r0), is_valid_ref(str, r0, st), st[r0 -- _type] .type ≤ st[r -- _type] .type .type, 0 < st[r -- _length] .intval, 0 ≤ i, is_array(str, r, st), i < st[r -- _length] .intval, unchanged(str, r, st, st1) ⊦ r0 = jvmref, r = jvmref, unchanged(str, r0, st, st1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: unchanged-pathex-unchanged antecedent: succedent: unchanged(str, r, st, st1) ∧ path∃(str, r, r0, st) → unchanged(str, r0, st, st1) substlist: [str, r, st, st1, r0] → [str, r, st, st1, 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 : ()], [EXTRATERMS : (str, r, st, st1, r0)]]