REFERRING to the review of Hilbert's “Grundlagen der Geometric,” on p. 394 of No. 2066 of NATURE (June 3), may I point out that the commutative law of addition can be proved without the help of any ...
Reprinted from The Joy of X: A guided tour of math, from one to infinity by Steven Strogatz. Copyright ©2012 Steven Strogatz. Reprinted with permission from Houghton ...
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