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Proof step 57 from proof junkref-addobj-01 (previous step)

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

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ ¬ junkrefs(str, refs, ty, st) ∧ newref(r0, st) → ¬ junkrefs(str, refs, ty, addobj(r0, class, fis, st))
Proof step 56:
¬ (¬ junkrefs(str, r0 ' + refs, ty, st) ∧ newref(r, st)), mkfs(class0, ty, fieldvar) ' ∈ fis, fis .keys = instfields(class), fis[mkfs(class0, ty, fieldvar) '] = refval(r0), junkrefs(str, r0 ' + refs, ty, addobj(r, class, fis, st)), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), validfieldinits(fis, st), class+∃(str, class), newref(r, st), ∀ sk, r1. sk × refval(r1) ∈ fis → ¬ junkref(str, r1, st) ⊦ r = jvmref, is_abstract(class)

Rule argument

[crewrite-arg: junkrefs-addobj , F , [st, fis, class, r0, ty, refs, str] → [st, fis, class, r, ty, r0 ' + refs, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, fis, class, r, ty, r0 ' + refs, str)]]