the Russellian set (which gave so much grief to Frege's V ax) is the set of all set which aren't members of themselves. Contradiction follows(e.g. the set of all bananas isn't a banana, while the set of all non finite set is itself non finte, hence it is --in naive set theory-- a member of itself -- Russell avoided the naive "trap" with type theories) On Fri, 26 Jun 2009, Walter C. Okshevsky wrote:
Quoting Robert Paul <rpaul@xxxxxxxx>:I want to see how long it takes JL to reply to this. (Paul Stone is holding the stopwatch.) RPSurely not even JL can be a class of all classes that is a member of itself. (Did I get Bertie right?) On a blisteringly hot summer day in St. John's, Walter O.------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html
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