Let A and B be events in a sample space with positive probabilities. Prove that

The seems relatively easy.

1st direction:

The second direction is identical so I am not going to post it.

Is this how it is proven though?

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- Feb 3rd 2011, 05:46 PMdwsmithProbability Proof
Let A and B be events in a sample space with positive probabilities. Prove that

The seems relatively easy.

1st direction:

The second direction is identical so I am not going to post it.

Is this how it is proven though? - Feb 3rd 2011, 05:58 PMRandom Variable
I think it's even simpler than that.

then