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Proof step 10 from proof getarray-addarray-02 (previous step)

is_fskey(_length), 0 ≤ i ⊦ getarray(r, 0, i, addarray(r, intval(0), i, st)[r -- _type, typeval(mkarraytype(int_type))]) = mklist(intval(0), i→n(i))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
0 ≤ i ⊦ getarray(r, 0, i, addarray(r, intval(0), i, st)[r -- _type, typeval(mkarraytype(int_type))]) = mklist(intval(0), i→n(i))

Rule argument

[emptyarg]

Additional information

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