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1. |
A sublattice(say, S) of a lattice(say, L) is a convex sublattice of L if _________ |
A. | x>=z, where x in S implies z in S, for every element x, y in L |
B. | x=y and y<=z, where x, y in S implies z in S, for every element x, y, z in L |
C. | x<=y<=z, where x, y in S implies z in S, for every element x, y, z in L |
D. | x=y and y>=z, where x, y in S implies z in S, for every element x, y, z in L |
Answer» D. x=y and y>=z, where x, y in S implies z in S, for every element x, y, z in L | |