BBy Bot
Jun 09'24
Exercise
[math]
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Prove that for any three events [math]A[/math], [math]B[/math], [math]C[/math], each having positive probability, and with the property that [math]P(A \cap B) \gt 0[/math],
[[math]]
P(A \cap B \cap C) = P(A)P(B|A)P(C|A \cap B)\ .
[[/math]]