From: Tord Kallqvist Romstad Date: 2002-09-11T07:55:53+09:00 Subject: Re: Addition on appropriate fields... Christopher Browne writes: > Anyone that has studied abstract algebra _won't_ be overly confused by > this, as the first entry into group theory will leap you into addition > systems that don't work the way you used to expect. Really? I have been doing abstract algebra and algebraic geometry for something like six or seven years, and I have _never_ seen anyone use the symbol '+' to denote a non-commutative operation ... -- Tord Romstad