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- Newsgroups: sci.logic
- Path: sparky!uunet!psgrain!hippo!ucthpx!elc.mth.uct.ac.za!gavan
- From: gavan@elc.mth.uct.ac.za (Gavan Tredoux)
- Subject: Re: implication truth table
- Sender: news@ucthpx.uct.ac.za (UCT News Admin.)
- Message-ID: <1992Nov19.195642.15296@ucthpx.uct.ac.za>
- Date: Thu, 19 Nov 92 19:56:42 GMT
- References: <Bxvq70.CIA@ra.nrl.navy.mil>
- Organization: University of Cape Town
- X-Newsreader: Tin 1.1 PL4
- Lines: 16
-
- mclean@itd.nrl.navy.mil (John McLean) writes:
- : From cmitchell@falcon.aamrl.wpafb.af.mil ()
- : >My question is: WHY is the implication relation defined as it is?
-
- [some reasons]
-
- There are logics that don't allow this paradox of
- material implication - relevance logics, where the antecedent
- and consequent have to be relevant to each other for the
- implication to hold. Of course there are a million and one
- ways of doing this.
-
- Primary strength of classical logic: there's only one.
-
- Gavan Tredoux
- UCT
-