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Proof step 13 from proof switch-addarray-addclass (previous step)

is_fskey(_length) ∨ r ≠ r ⊦ r = jvmref, (addarray(r, initial_value(ty), i, addclass(class, fis, st)[r -- _type, typeval(mkarraytype(ty))])[r -- _length, intval(i)]) = (addclass(class, fis, addarray(r, initial_value(ty), i, st))[r -- _type, typeval(mkarraytype(ty))][r -- _length, intval(i)])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 12:
⊦ r = jvmref, (addarray(r, initial_value(ty), i, addclass(class, fis, st)[r -- _type, typeval(mkarraytype(ty))])[r -- _length, intval(i)]) = (addclass(class, fis, addarray(r, initial_value(ty), i, st))[r -- _type, typeval(mkarraytype(ty))][r -- _length, intval(i)])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(_length)])]]