(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Prove that A intersection B is a subset of A union B without using Venn diagrams

2. Relevant equations

No relevant equations really

3. The attempt at a solution

What i am thinking is this:

A union B = A+B- A intersection B shows the intersection is within the union

So A intersection B = -A union B +A+B, which tells me the intersection is smaller than the union.

Can anybody give me some feedback please?

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# Homework Help: Prove using sets

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