See Herstein 1964, page 1: "An algebraic system may be described as a set of objects along with some operations for combining them". Esposito, John L. (2000). The Oxford History of Islam. Oxford University Press. p. T. F. Hoad, ed. 2003). "Algebra". The Concise Oxford Dictionary of English Etymology. Oxford: Oxford University Press. See Boyer 1991, Europe in the Center Ages, p. Struik, Dirk J. (1987). A Concise History of Arithmetic. If you are you looking for more info about bioresonance focused ultrasound therapy have a look at our own web site. New York: eft energy-field-therapy men's underwear review Dover Publications. Cajori, Florian (2010). A Historical past of Elementary Mathematics - With Hints on Strategies of Teaching. Learn Books Design. p. Roshdi Rashed (2009). Al Khwarizmi: The Beginnings of Algebra. Mackenzie, Dana (2012). The universe in zero words : the story of arithmetic as informed by way of equations. Princeton, olav skille vibroacoustic therapy N.J.: Princeton College Press. Bradley, Michael J.