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

I need to prove or disprove:

(AintersectB)'=A'intersectB'

2. Relevant equations

3. The attempt at a solution

Let x[tex]\in[/tex](A[tex]\cap[/tex]B)'

Then x[tex]\notin[/tex]A[tex]\cap[/tex]B

x[tex]\notin[/tex]A or x[tex]\notin[/tex]B

Then x[tex]\in[/tex]A' or x[tex]\in[/tex]B'

x[tex]\in[/tex]A'[tex]\cup[/tex]B'

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# Homework Help: (A intersect B)' proof

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