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Mathematics
OpenStudy (anonymous):
prove 1+1 = 2
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OpenStudy (anonymous):
Middle of the page: http://quod.lib.umich.edu/cgi/t/text/pageviewer-idx?c=umhistmath&cc=umhistmath&idno=aat3201.0001.001&frm=frameset&view=image&seq=401
OpenStudy (anonymous):
The actual proof of 1+1=2 comes on page 86 of the famous "Principles of Mathematics" 3 volume collection - an effort to prove all of math from first principles. http://en.wikipedia.org/wiki/Principia_Mathematica
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