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Proof step 15 from proof unchanged-class-forward (previous step)

is_referencevalue(st[r -- sk]), is_obj(str, r, st), sk ∈ instfields(st[r -- _type] .type .class), unchanged(str, r, st, st1), st[r -- sk] .refval ≠ jvmref → st[st[r -- sk] .refval -- _type] .type ≤ sk .fs .type ∧ is_valid_ref(str, st[r -- sk] .refval, st) ⊦ r = jvmref, unchanged(str, st[r -- sk] .refval, st, st1)

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] → [sk .fs, class, ty, 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 : (sk .fs, class, ty, fieldvar)]]