Answers

2014-06-13T10:48:18+08:00
Set is a subset of set if all of the elements (if any) of set are cointained in set B. This is written B. 

Note: The empty set is a subset of every set.
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2014-06-14T17:09:34+08:00
A subset is like a set within a set. For instance, A={J,A,M,I,C,H}. We can say that set B={J,A,M} is a subset of set A because all the elements of set B can be found in set A.
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