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Proof step 18 from proof junkref-class-01 (previous step)

st[r -- _type] .type = mkclasstype(class0), st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), st[r -- _type] = typeval(mkclasstype(class0)), junkrefs(str, r0 ' + refs, ty, st), mkfs(class, ty, fieldvar) ' ∈ instfields(class0), r -- _type ∈ st, is_typevalue(st[r -- _type]), is_classtype(st[r -- _type] .type), is_obj(r, class0, st), class+∃(str, class0), r ∈ st ⊦ r0 = jvmref, ty = abstract_type, r = jvmref, is_abstract(class0), is_reftype(ty)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
st[r -- _type] = typeval(mkclasstype(class0)), st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), r ∈ st, class+∃(str, class0), is_obj(r, 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)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_typevalue(typeval(ty))], [CSIMPSEQ : ⊦ is_classtype(mkclasstype(class))], [CSIMPSEQ : ⊦ mkclasstype(class) = mkclasstype(class0) ↔ class = class0], [CSIMPSEQ : ⊦ typeval(ty) .type = ty])]]