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Proof step 5 from proof isobj-put-samefield-02 (previous step)

st[r -- _type] = typeval(mkclasstype(class)), goodfieldsandtypes(r, instfields(class), st), okval(val, ty), r -- _type ∈ st, r ∈ st ⊦ mkfs(class0, ty, fieldvar) ' = _type, r = jvmref, r ≠ jvmref ∧ (r -- _type) × typeval(mkclasstype(class)) ∈ st[r -- mkfs(class0, ty, fieldvar) ', val] ∧ goodfieldsandtypes(r, instfields(class), st[r -- mkfs(class0, ty, fieldvar) ', val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
st[r -- _type] = typeval(mkclasstype(class)), goodfieldsandtypes(r, instfields(class), st), okval(val, ty), r -- _type ∈ st, r ∈ st ⊦ mkfs(class0, ty, fieldvar) ' = _type, r = jvmref, goodfieldsandtypes(r, instfields(class), st[r -- mkfs(class0, ty, fieldvar) ', val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ sk ≠ sk0 → (st[r -- sk, val][r0 -- sk0]) = st[r0 -- sk0]], [CSIMPSEQ : sk ≠ sk0 ⊦ r -- sk ∈ st[r -- sk0, val] ↔ r -- sk ∈ st], [CSIMPSEQ : ⊦ rk × val ∈ st ↔ ¬ ¬ (rk ∈ st ∧ st[rk] = val)])]]