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Proof step 12 from proof is_obj-no-refval (previous step)

mkfs(str2 .class, mkclasstype(str0 .class), str1 .field) ' ∈ instfields(st[r -- _type] .type .class), class+∃(str, st[r -- _type] .type .class), r ≠ jvmref ∧ r -- _type ∈ st ∧ is_typevalue(st[r -- _type]) ∧ is_classtype(st[r -- _type] .type) ∧ is_obj(r, st[r -- _type] .type .class, st) ⊦ is_referencevalue(st[r -- mkfs(str2 .class, mkclasstype(str0 .class), str1 .field) ']), is_abstract(st[r -- _type] .type .class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ sk ∈ instfields(st[r -- _type] .type .class) ∧ is_obj(r, class, st) → st[r -- _type] = typeval(mkclasstype(class))
Proof step 11:
st[r -- _type] = typeval(mkclasstype(st[r -- _type] .type .class)), mkfs(str2 .class, mkclasstype(str0 .class), str1 .field) ' ∈ instfields(st[r -- _type] .type .class), class+∃(str, st[r -- _type] .type .class), r -- _type ∈ st, is_typevalue(st[r -- _type]), is_classtype(st[r -- _type] .type), is_obj(r, st[r -- _type] .type .class, st), r ∈ st ⊦ r = jvmref, is_referencevalue(st[r -- mkfs(str2 .class, mkclasstype(str0 .class), str1 .field) ']), is_abstract(st[r -- _type] .type .class)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ r -- sk ∈ st → r ∈ st])]]