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- From: pratt@Sunburn.Stanford.EDU (Vaughan R. Pratt)
- Newsgroups: sci.math
- Subject: Re: Trivial! (was: Re: Help X^2 == Y mod N)
- Message-ID: <1992Nov5.031326.11279@CSD-NewsHost.Stanford.EDU>
- Date: 5 Nov 92 03:13:26 GMT
- References: <1992Nov5.001930.24516@galois.mit.edu>
- Sender: news@CSD-NewsHost.Stanford.EDU
- Organization: Computer Science Department, Stanford University.
- Lines: 17
-
- In article <1992Nov5.001930.24516@galois.mit.edu> jbaez@riesz.mit.edu (John C. Baez) writes:
- >Some of you may remember the post in which I described a system of logic
- >with a predicate T such that T(P) means "P is trivial". T(P) -> P
- >but not vice-versa. (Well, in real life T(P) does not imply P, but
- >we're just joking around here.) T(P) -> T(T(P)), though.
-
- Isn't T->TT contradicted by the example of Norbert Wiener? After being
- challenged about T(P) for some P that probably no one remembers any
- more, Wiener wandered away in deep thought and returned 20 minutes
- later to announce triumphantly that it was indeed trivial.
-
- Or did you mean Trivial(P) -> Triumphantly(Trivial(P))?
-
- (MIT is the official repository of Wiener stories, so I fully expect a
- suitable counterstory from John.)
- --
- Vaughan Pratt There's no truth in logic, son.
-