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February 28th, 2014, 03:27 PM  #1 
Newbie Joined: Sep 2013 Posts: 16 Thanks: 0  First proof!  The difference of two numbers is scalable
I was bored today in math class so I decided to try to make a proof. This is a proof showing that the difference between any two numbers is proportional to their size. Assume x  y = z Knowing that ax  ay = a(x  y) then if ax  ay = bz, where b is an unknown, then: bz = a(x  y) bz = az b = a Mainly I'm wondering if I did any sort of logicy thing wrong, so that I can make sure I know how to do it right next time. 
February 28th, 2014, 03:55 PM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: First proof!  The difference of two numbers is scalable
Looks good to me.


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