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Proof step 11 from proof validref-put-field (previous step)

fs ' ∈ instfields(st[r -- _type] .type .class), st[r0 -- _type] .type ≤ fs .type, is_obj(r, st), validref(str, r, ty, st), validref(str, r0, ty0, st) ⊦ r0 = jvmref, validref(str, r, ty, st[r -- fs ', refval(r0)])

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 10:
fs = mkfs(class, ty1, fieldvar), fs ' ∈ instfields(st[r -- _type] .type .class), st[r0 -- _type] .type ≤ ty1, is_obj(r, st), validref(str, r, ty, st), validref(str, r0, ty0, st) ⊦ r0 = jvmref, validref(str, r, ty, st[r -- fs ', refval(r0)])

Rule argument

[speclemmaarg: , class = fs .class ∧ ty = fs .type ∧ fieldvar = fs .field ↔ fs = mkfs(class, ty, fieldvar) ,[fs, class, ty, fieldvar] → [fs, class, ty1, fieldvar] ,T ,fieldspec , ,elim ]

Additional information

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