1. Meaning two Y 3 + ions generate one vacancy on the anionic sublattice . 2. Suppose an M ion leaves the M sublattice , leaving the X sublattice unchanged. 3. Suppose an M ion leaves the M sublattice, leaving the X sublattice unchanged. 4. In particular, since normal subgroups permute with each other, they form a modular sublattice . 5. The rigid ion sublattice of AdSIC has structure channels where mobile ions of opposite sign migrate. 6. Then, each ideal in R defines a sublattice of \ Z ^ n called ideal lattice. 7. Furthermore, every finite lattice is isomorphic to a sublattice of the subgroup lattice of some finite group. 8. Indeed, this particular lattice contains the forbidden " pentagon " " N " 5 as a sublattice . 9. Since " K " is generated by copies of subgroups that are homomorphic images of SU ( 2 ) corresponding to sublattice . 10. Each of the two individual atom types forms a sublattice which is HCP-type ( short for " hexagonal close-packed " ).