Gregory's Server@yogthos Have you heard of the book Principia Mathematica?
1+1=2 is not as obvious as you might think, it's just what you're used to.
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 @yogthos Have you heard of the book Principia Mathematica? 1+1=2 is not as obvious as you might think, it's just what you're used to. 1 comment
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@drq I was just reading I Am a Strange Loop by Douglas R. Hofstadter recently, and there's a big discussion of Principia Mathematica in there. :)