Sunday, July 10, 2005
L&S: Set Theory
In the opening session yesterday, program director Chris Martin asked each student to think of a thinker who had strongly influenced them. Then he had them get in groups by thinker – here’s the Locke group, here’s the Jefferson group, etc. Perhaps surprisingly, the Ayn Rand group had just three members. Tom leaned over to me and said, “Actually, that’s not one group, it’s three groups of one person each.”
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OK, so I know I am exposing myself as a total math geek, but still: In an entry called "set theory" the term group shouldn't be used for any old set. A group is a set with a binary operation such that it is associative, has an identity element and has an inverse element. And yes, if you don't have the slightest idea what this means, it's safe to ignore this comment.
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