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Proof step 30 from proof ac-del-01 (previous step)

¬ is_indexkey(fv .1), ∀ class1, sk, val0, st, val. (addclass(class1, fis0 + (sk × val0) ', st)[jvmref -- sk, val]) = (addclass(class1, fis0, st)[jvmref -- sk, val]) ⊦ (addclass(class1, (fv ' + fis0) + (sk × val0) ', st)[jvmref -- sk, val]) = (addclass(class1, fv ' + fis0, st)[jvmref -- sk, val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 29:
is_fskey(fv .1), ∀ class1, sk, val0, st, val. (addclass(class1, fis0 + (sk × val0) ', st)[jvmref -- sk, val]) = (addclass(class1, fis0, st)[jvmref -- sk, val]) ⊦ (addclass(class1, (fv ' + fis0) + (sk × val0) ', st)[jvmref -- sk, val]) = (addclass(class1, fv ' + fis0, st)[jvmref -- sk, val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ is_indexkey(sk) ↔ is_fskey(sk)])]]