Answers

2014-06-03T17:10:49+08:00
Set is a collection of things, for example {1,2,3}

Subset consists of some elements of its set For example: 
{1,2,3,4,5} - set 
{3,4} - its subset

Empty set is a set without elements. It's represented by {} 

Equal sets have the same elements.


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