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Proof step 20 from proof ac-okarrays (previous step)

st[r -- sk] ≠ refval(jvmref), sk .fs = mkfs(class0, ty, fieldvar), sk × val ∈ fis, ∀ sk0, val0. sk0 × val0 ∈ fis → is_integervalue(val0) ∧ is_fskey(sk0) ∧ is_arraytype(sk0 .fs .type) ∧ okarray(st[r -- sk0], sk0 .fs .type .type, val0 .intval, st) ⊦ r = jvmref, is_integervalue(val) ∧ ¬ is_indexkey(sk) ∧ is_arraytype(ty) ∧ okarray(st[r -- sk], ty .type, val .intval, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
sk .fs = mkfs(class0, ty, fieldvar), sk × val ∈ fis, ∀ sk0, val0. sk0 × val0 ∈ fis → is_integervalue(val0) ∧ is_fskey(sk0) ∧ is_arraytype(sk0 .fs .type) ∧ okarray(st[r -- sk0], sk0 .fs .type .type, val0 .intval, st) ⊦ st[r -- sk] = refval(jvmref), r = jvmref, is_integervalue(val) ∧ ¬ is_indexkey(sk) ∧ is_arraytype(ty) ∧ okarray(st[r -- sk], ty .type, val .intval, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]