The Axioms of Probability

All probability values are in [0,1]

P(TRUE) = 1, P(FALSE) = 0

P(A Ú B) = P(A) + P(B) - P(A Ù B)

...and some theorems:

P(A) + P(ØA) = 1

P(A) = P(A Ù B) + P(A Ù ØB)

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