Proving Metric Spaces
Hi! I'm struggling with a question from a past paper:
Let C denote the set of complex numbers and define a mapping d:C x C > R by the rule,
d(x,y) = 0, x=y
= |x|+|y| x doesn't = y.
I need to prove that (C,d) is a metric space....help please!!
Originally Posted by abigail88
This is very easy stuff for anyone knowing the very basic definitions: what have you done, what have you attempted? Where are you stuck?
At the very least you must know what has to be proved...(Nerd)
It's fine, we've solved it already (Talking)