Question
Asked Feb 20, 2019
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Let A and B be sets. Prove that the intersection of A and B is is a subset of the union between A and B .

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Expert Answer

Step 1

To show that the elements which are common to both A and B belong to either A or B.

Step 2

We need to prove this symbolically: 

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Step 3

This is seen clearly by using ...

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Advanced Math

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