Answer to Question #266039 in Discrete Mathematics for bojie

Question #266039

{(1,2), (3,5)} is a partition of {1,2,3,4,5}?


1
Expert's answer
2021-11-15T15:47:03-0500

A partition of the set A is the set of subsets of A, such that it doens't contain an empty set, their unification is equal to A and the intersection of any two elements is an empty set.

(1,2)(3,5)=(1,2,3,5)(1,2,3,4,5)(1,2) ∪(3,5)=(1,2,3,5)\not=(1,2,3,4,5) . So, {(1,2), (3,5)} is not a partition of {1,2,3,4,5}


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