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

¬ is_indexkey(fv .1), ∀ r, class, st. r = jvmref ∨ getbytearray(r, addclass(class, fis0, st)) = getbytearray(r, st) ⊦ r = jvmref, getbytearray(r, addclass(class, fv ' + fis0, st)) = getbytearray(r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
is_fskey(fv .1), ∀ r, class, st. r = jvmref ∨ getbytearray(r, addclass(class, fis0, st)) = getbytearray(r, st) ⊦ r = jvmref, getbytearray(r, addclass(class, fv ' + fis0, st)) = getbytearray(r, st)

Rule argument

[emptyarg]

Additional information

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