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Proof step 8 from proof ac-del-02 (previous step)

is_fskey(sk) ⊦ (addclass(class1, (sk × val0) ' + fis0, st)[jvmref -- sk, val]) = (addclass(class1, fis0, st)[jvmref -- sk, val])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ is_fskey(fv .1) ∧ fv .1 .fs .class ≠ class → addclass(class, fv ' + fis, st) = addclass(class, fis, st)
Proof step 7:
¬ (is_fskey((sk × val0) .1) ∧ (sk × val0) .1 .fs .class ≠ class1), is_fskey(sk) ⊦ (addclass(class1, (sk × val0) ' + fis0, st)[jvmref -- sk, val]) = (addclass(class1, fis0, st)[jvmref -- sk, val])

Rule argument

[crewrite-arg: ac-no1 , F , [st, fis, fv, class] → [st, fis0, sk × val0, class1] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, fis0, sk × val0, class1)]]