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Proof step 21 from proof unchNorec-junkrefs (previous step)

st[r -- _type] = st0[r -- _type], is_obj(str, r, st0), unchangedNorec(r, st, st0), is_obj(str, r, st), st0[r -- _type] .type ≤ ty, fs ' ∈ instfields(st0[r -- _type] .type .class), is_referencevalue(st[r -- fs ']), junkrefs(str, st[r -- fs '] .refval ' + refs, fs .type, st), ∀ r0. r0 = st[r -- fs '] .refval ∨ r0 ∈ refs → unchangedNorec(r0, st, st0), ∀ str0, ty0, st1, st2. junkrefs(str0, st[r -- fs '] .refval ' + refs, ty0, st1) ∧ (∀ r0. r0 = st[r -- fs '] .refval ∨ r0 ∈ refs → unchangedNorec(r0, st1, st2)) → junkrefs(str0, st[r -- fs '] .refval ' + refs, ty0, st2) ⊦ r = jvmref, ∃ fs0. fs0 ' ∈ instfields(st0[r -- _type] .type .class) ∧ is_referencevalue(st0[r -- fs0 ']) ∧ st[r -- fs '] .refval = st0[r -- fs0 '] .refval ∧ junkrefs(str, st[r -- fs '] .refval ' + refs, fs0 .type, st0)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: fieldspec instance-name: lemma-name: elim antecedent: succedent: class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar) substlist: [fs, class, ty, fieldvar] → [fs, class, ty1, fieldvar] add preconditions?: F is rewrite lemma?: F current spec?: F rotate lemma?: T replace all?: T paths: () dummy: () ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPELIM : ⊦ class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar)])], [EXTRATERMS : (fs, class, ty1, fieldvar)]]