I understand there is a symbol for infinite. Is there one for finite?
I searched and found there is none. How is finite represented symbolically?
notation
I understand there is a symbol for infinite. Is there one for finite?
I searched and found there is none. How is finite represented symbolically?
Best Answer
I have never seen a notation for 'finite,' but what I do very often see is denoting something finite as simply being less than infinity. For example, $|A| < \infty$, or $[G:H] < \infty$.
Small thing I'd like to add: Of course something like $[G:H] < \infty$ isn't technically meaningful, but it certainly gets the point across and in my experience at least seems to be pretty standard.