# Thread: Direct proof and Proof by contradiction

1. ## Direct proof and Proof by contradiction

Hi Guys and Gals

I'm a serious newbie here so please be nice to me and excuse any ingnorance i may demonstrate.

Hoping some one can help me with this question.... "If X is a positive real number and X<1 then X^2<1" , i have to give both a direct proof and proof by contradiction for this statement. I have read up and understand what is meant by a direct proof and proof by contradiction but i cant really put it together.

Any help?

2. This exact question has been asked and answered (by yours truly) here

http://www.mathhelpforum.com/math-he...ect-proof.html

3. Thanks mate. That makes alot of sense.