SOLUTION: explain why every set is a subset of itself.

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Question 487462: explain why every set is a subset of itself.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
By definition, set A is a subset of set B if every element of
set A is an element of set B.
Every element of set A is an element of set A.
Therefore set A is a subset of set A.