I need to prove that there exist a one-to-one function:

where should i start?

thanks in advanced!

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- December 14th 2012, 02:30 AMStormeyone-to-one function
I need to prove that there exist a one-to-one function:

where should i start?

thanks in advanced! - December 14th 2012, 03:39 AMDevenoRe: one-to-one function
try picking a function that maps an element a to (a,___) (i'll leave it to you to decide what might go in the blank).

- December 14th 2012, 07:56 AMStormeyRe: one-to-one function
do i just need to provide an example of a function that goes from ?

(like or ...)

im not sure what exactly do i need to prove here... - December 14th 2012, 08:09 AMPlatoRe: one-to-one function
- December 14th 2012, 09:05 AMemakarovRe: one-to-one function
And note that the original claim is false when B is empty but A is not.

- December 15th 2012, 06:32 AMStormeyRe: one-to-one function
Thanks guys.

appreciate it!