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Proof step 5 from proof junkref-addobj-01 (previous step)

(addobj(r, class, fis, st)[r -- mkfs(class0, ty, fieldvar) ']) = refval(r0), fis .keys = instfields(class), newref(r, st), class+∃(str, class), validfieldinits(fis, st), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), junkrefs(str, r0 ' + refs, ty, addobj(r, class, fis, st)), ∀ sk, r1. sk × refval(r1) ∈ fis → ¬ junkref(str, r1, st) ⊦ r = jvmref, mkfs(class0, ty, fieldvar) ' ∈ fis, is_abstract(class)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,sk ∈ fis ↔ sk ∈ fis .keys ,[fis, sk] → [fis, mkfs(class0, ty, fieldvar) '] ,F ,okfuns , ,keys-in-01 ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (fis, mkfs(class0, ty, fieldvar) ')]]