The text book says because it's convenient. Is there a better explanation or proof. Thankyou.

Follow Math Help Forum on Facebook and Google+

Originally Posted by woollybull The text book says because it's convenient. Is there a better explanation or proof. Thankyou. Hopefully this helps do not be alarmed by this. a lot of time mathematicians make definitions because they work, and they don't contradict anything else. but they allow for things to work nicely. this is fine