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Proof step 21 from proof cyclic-class (conclusion)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
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)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]