| ⊦ r = r0, getarray(r, addobj(r0, class, fis, st)) = getarray(r, st) |
⊦ getarray(r, st) = getarray(r, 0, st[r -- _length] .intval, st)
⊦ r = r0, getarray(r, 0, (addobj(r0, class, fis, st)[r -- _length]) .intval, addobj(r0, class, fis, st)) = getarray(r, st)
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (addobj(r0, class, fis, st), r)]]