- #1

- 157

- 0

## Homework Statement

Prove that a nonempty set T1 is finite if and only if there is a bijection from T1 onto a finite set T2.

## The Attempt at a Solution

There are at least two different solutions to this problem that I found online:

http://answers.yahoo.com/question/index?qid=20090319202703AACrlT8

http://www.cramster.com//answers-se...-set-prove-nonempty-set-t1-finite_921466.aspx

Is there any other solution? For a dummy like me these solutions are hard enough to understand them completely. If you can help me get the idea, I will really appreciate it.

Last edited by a moderator: