Computers and Technology, 19.10.2021 06:20, ASHCASH44

Determine whether each relation is an equivalence relation. Justify your answer. If the relation is an equivalence relation, then describe the partition defined by the equivalence classes. (a) The domain is a group of people. Person x is related to person y under relation P if x and y have a common parent (i. e., x and y have the same biological mother or the same biological father or both). You can assume that there is at least one pair in the group, x and y, such that xPy.
(b) The domain is a group of people. Person x is related to person y under relation M if x and y have the same biological mother. You can assume that there is at least one pair in the group, x and y, such that xMy.
(c) The domain is the set of all integers. xEy if x + y is even. An integer z is even if z = 2 k for some integer k.

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Determine whether each relation is an equivalence relation. Justify your answer. If the relation is...