| n < # wlar ⊦ bflipset-cons(bflipset, subarray(wlar, 0, n)) → bflipset-cons(bflipset ++ n, subarray(wlar[n, wl-entry(m0, used)], 0, n + 1)) |
n < # wlar, bflipset-cons(bflipset, subarray(wlar, 0, n)) ⊦ bflipset-cons(bflipset ++ n, subarray(wlar[n, wl-entry(m0, used)], 0, n + 1))