It might be a quite dumb question and if so, I apologize in advance (I am kind of a newbie in probability theory ). But once in a while it bothers me and I can't find the answer to it.
Ok, now the question is as follows: if I have a probability written like this:
$P(A|B,C)$
does this mean that
*) A is dependent on B and C or that
*) it is an joint distribution of A|B and C
and if the first is true, how would I write the second one?