http://archive.bfroehle.com/2004/09/21/math-humor/ My blog, pre-2005. Sun, 13 Nov 2011 22:31:47 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://archive.bfroehle.com/2004/09/21/math-humor/comment-page-1/#comment-454 Brad Froehle Tue, 21 Sep 2004 15:43:26 +0000 http://bfroehle.com/archives/2004/09/21/math-humor/#comment-454 I should mention that this arose in analysis when talking about taking the difference of sets when elements could be duplicated. Prof Keel took the opinion that each of the smiley faces is distinct -- thus making the problem a non-issue. I should mention that this arose in analysis when talking about taking the difference of sets when elements could be duplicated. Prof Keel took the opinion that each of the smiley faces is distinct — thus making the problem a non-issue.

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