| gblock = groupblock(gndx, lax, m) ⊦ abs-log(nx, gstore[nx.last, gblock]) = abs-log(nx.butlast, gstore) + lax.to-adr(nx.last), nx = [], dups(nx) |
⊦ abs-log(nx, gstore[nx.last, groupblock(gndx, lax, m)]) = abs-log(nx.butlast, gstore) + lax.to-adr(nx.last), nx = [], dups(nx)