| ⊦ r = r0, getintarray(r, addarray(r0, ty, i0, st)) = getintarray(r, st) |
⊦ getintarray(r, st) = getintarray(r, 0, st[r -- _length] .intval, st)
⊦ r = r0, getintarray(r, 0, (addarray(r0, ty, i0, st)[r -- _length]) .intval, addarray(r0, ty, i0, st)) = getintarray(r, st)
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addarray(r0, ty, i0, st), r)]]