Excuse my naive (perhaps ignorant) question: when was the a<b<c rule/convention/standard/whatever introduced? None of the textbooks I came across mentions it as far as I could see (not that this is reason for or against this rule of course).
Thanks, Boaz Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel Phone: 972-8-647-2220 ; Fax: 646-1710 Skype: boaz.shaanan
