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Proof step 9 from proof junkref-class-02 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
st[r -- mkfs(class, ty, fieldvar) '] = refval(r0), st[r -- _type] .type = mkclasstype(class0), r ∈ st, mkfs(class, ty, fieldvar) ' ∈ instfields(class0), goodfieldsandtypes(r, instfields(class0), st), is_typevalue(st[r -- _type]), r -- _type ∈ st, class+∃(str, class0) ⊦ r = jvmref, r0 = jvmref, is_abstract(class0), is_reftype(ty)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_classtype(mkclasstype(class))])]]