| is_fskey(_type), i ≤ j, 0 ≤ i, 0 ≤ j ⊦ getarray(r, 0, i, addarray(r, intval(0), j, st)) = mklist(intval(0), i→n(i)) |
i ≤ j, 0 ≤ i, 0 ≤ j ⊦ getarray(r, 0, i, addarray(r, intval(0), j, st)) = mklist(intval(0), i→n(i))
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(_type)])]]