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Proof step 20 from proof addclass-switch-01 (previous step)

fv = sk0 × val0, ∀ r, class, st, sk, val. r = jvmref ∨ addclass(class, fis0, st[r -- sk, val]) = (addclass(class, fis0, st)[r -- sk, val]) ⊦ r = jvmref, addclass(class, fv ' + fis0, st[r -- sk, val]) = (addclass(class, fv ' + fis0, st)[r -- sk, val]), ¬ is_indexkey(sk0) ∧ sk0 .fs .class ≠ class

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
∀ r, class, st, sk, val. r = jvmref ∨ addclass(class, fis0, st[r -- sk, val]) = (addclass(class, fis0, st)[r -- sk, val]) ⊦ r = jvmref, addclass(class, (sk0 × val0) ' + fis0, st[r -- sk, val]) = (addclass(class, (sk0 × val0) ' + fis0, st)[r -- sk, val]), ¬ is_indexkey(sk0) ∧ sk0 .fs .class ≠ class

Rule argument

[emptyarg]

Additional information

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