Shitty, informal uni books? Shitty, informal uni books.

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dude who needs definitions

>>7801389
looks like phi is an impossible event.
looks like S is any possible events.

>>7801389
I don't read that book but I know immediately that by S, in this case, he meant [math]\Omega[/math].
[math]P(\Omega) = 1[/math].
Stop being such an ass. If you don't like it, you can just switch to another book. Is it too much to do?

>>7801389
[math] \emptyset , ~ not ~ \phi [/math]
S is the universe aka set of all possible events

>>7801404
Well that would be great if the case was that they actually used the symbol for the empty set.

0 ≤ P (A) ≤ 1,
P (φ) = 0,
and
P (S) = 1.

S and φ are defined nowhere in that subsection

>>7801412

he couldnt find the null symbol in latex man give the author a break

>>7801409
Different fonts ϕ≠φ

>>7801548
it is an uppercase phi

>>7801549
capital phi: Φ
phi: φ
phi 2.0: ϕ
Null: O

>>7801558
it depends on the font
the one in the book copies as a phi for me.