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Article #175En slaks semiooolesk algebra
From: Henn1ng Makholm
Date: Mon, 24 Oct 2005 19:26
Date: Mon, 24 Oct 2005 19:26
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1054 bytes
Jeg leder efter noget teori (og et navn) for en algebraisk struktur med
to kompositioner & og +, to udvalgte elementer 0 og 1, og aksiomerne
a+b = b+a (a+b)+c = a+(b+c) a+0 = a a+1 = 1 a+a = a
(a&b)&c = a&(b&c) 0&a = a&0 = 0 1&a = a&1 = a a&a = a
a+(b&c) = (a+b)&(a+c)
a&(b+c) = (a&b)+(a&c)
(a+b)&c = (a&c)+(b&c)
Hvis & var kommutativ ville jeg have et distributivt gitter, men det
er den ikke..
Nogen forslag?
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X-Google-Thread: f83d5,4d3d411ee388e92c,start X-Google-Attributes: gidf83d5,public X-Google-Language: DANISH,ASCII-7-bit Subject: En slaks semiooolesk algebra From: Henn1ng Makholm Message-ID: <vomMLDN2FHA.3740@winisp-ti82.winisp.net> Newsgroups: dk.edb.hardware.casemodding Date: Mon, 24 Oct 2005 12:26:12 -0700 Lines: 12 Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!news.glorb.com!logbridge.uoregon.edu!arclight.uoregon.edu!news.netins.net!uunet!spool.news.uu.net!ash.uu.net!news.winisp.net NNTP-Posting-Host: host47.201-252-214.telecom.net.ar 201.252.214.47