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Proof step 16 from proof junkref-class-01 (previous step)

st[r -- _type] = typeval(mkclasstype(class0)), st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), r ∈ st, class+∃(str, class0), r ≠ jvmref ∧ (r -- _type) × typeval(mkclasstype(class0)) ∈ st ∧ goodfieldsandtypes(r, instfields(class0), st), r -- _type ∈ st, mkfs(class, ty, fieldvar) ' ∈ instfields(class0), junkrefs(str, r0 ' + refs, ty, st) ⊦ r = jvmref, ty = abstract_type, r0 = jvmref, is_reftype(ty), is_abstract(class0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
st[r -- _type] = typeval(mkclasstype(class0)), st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), r ∈ st, class+∃(str, class0), goodfieldsandtypes(r, instfields(class0), st), r -- _type ∈ st, mkfs(class, ty, fieldvar) ' ∈ instfields(class0), junkrefs(str, r0 ' + refs, ty, st) ⊦ ty = abstract_type, r0 = jvmref, r = jvmref, is_reftype(ty), is_abstract(class0)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ rk × val ∈ st ↔ rk ∈ st ∧ st[rk] = val])]]