Question 1151544
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Hey, we live in XXI century, for your info.



In this century, and just three hundred years (at least), nobody writes a Math text as you do.


If you able to write P(A and B) = 0,  it is just fully enough to express your thought.


Had you write in correct way, I'd refer you to sources to read about the mutually exclusive events.


But since you write in this way as you do, I better will leave you without this reference.