hi,

can anyone show me why is this true:

P is a probability function

thank you

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- March 13th 2013, 01:44 AMbaxy77baxset operations
hi,

can anyone show me why is this true:

P is a probability function

thank you - March 13th 2013, 03:44 AMPlatoRe: set operations
- March 13th 2013, 05:32 AMbaxy77baxRe: set operations
ok i get it , however i still don't get how to show that

or is this an axiom - March 13th 2013, 05:47 AMPlatoRe: set operations
- March 21st 2013, 05:19 AMHallsofIvyRe: set operations
Do you understand the

**definitions**of " " and " "? if and only if x is in**both**A and B. if x is in**either**A or B.

If , then x is in every set in E. So certainly, .