how do you show that $c$ has not to be a value? what is $c$ in probability which of the following is an example of a function that is not necessary for the javascript to be a field do you need $c$ for math how to do something with c$ and what $c$ does $C$ have to be a field what is the function of $c$? does $c$ have to be a field what is $c$ can you show a field in $c$ how to solve a probabilistic math problem how to prove $c$ is not a field how do you demonstrate that $c$ is not a field can $c$ be a field does $c$ have to be a field why doesn't $c$ have to be a field if a subset has $c$, how does $a in $c$ differ from the subset for c$? assuming that $c$ is a class of subset of $omega$, $a is $c in c$, and $c is closed under _disjoint_ unions. how to show that the $c$ do not need to be a field how to show an example of not having a field