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Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: High school
Topic ID: 392
Message ID: 1
#1, RE: proof 13
Posted by alexb on Mar-17-10 at 08:53 PM
In response to message #0
Do not remember where I picked it from. Loomis has a simiar proof (algebraic 9) but also without reference.