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Proof step 20 from proof cyclic-class (previous step)

st[r -- fs '] = refval(r0), st[r0 -- _type] .type ≤ fs .type, is_reftype(fs .type), fs ' ∈ instfields(st[r -- _type] .type .class), is_obj(str, r, st), cyclic(str, r0, st) ⊦ cyclic(str, r, st)

Heuristic elimination applied rule insert elim lemma

And obtained the following new goals

Proof step 19:
fs = mkfs(class, ty, fieldvar), st[r -- fs '] = refval(r0), st[r0 -- _type] .type ≤ ty, is_reftype(ty), fs ' ∈ instfields(st[r -- _type] .type .class), is_obj(str, r, st), cyclic(str, r0, st) ⊦ cyclic(str, r, st)

Rule argument

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