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


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