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Proof step 12 from proof cyclic-put-badclassfield (previous step)

∃ refs, r1. ¬ dups(refs) ∧ r1 ∈ refs ∧ refs .first = r ∧ validrefs(str, refs + r1 ', (st[r0 -- fs ', val][r -- _type]) .type, st[r0 -- fs ', val]), is_classtype(st[r0 -- _type] .type) ⊦ cyclic(str, r, st), fs ' = _type, junkref(str, r, st), fs ' ∈ instfields(st[r0 -- _type] .type .class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
is_classtype(st[r0 -- _type] .type), r1 ∈ refs, validrefs(str, refs + r1 ', st[refs .first -- _type] .type, st[r0 -- fs ', val]) ⊦ fs ' = _type, cyclic(str, refs .first, st), junkref(str, refs .first, st), fs ' ∈ instfields(st[r0 -- _type] .type .class), dups(refs)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ sk ≠ sk0 → (st[r -- sk, val][r0 -- sk0]) = st[r0 -- sk0]])]]