1.

Suppose P1 is a partially ordered class and a cut of P1 is pair (D, T) of nonempty subclasses of P1 satisfies which of the following properties?

A. D∩T=Ø
B. D∪T=P1
C. xyz∈T
D. z∈T and zx∈D
Answer» B. D∪T=P1


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