Ahouxg.121 net.math utzoo!decvax!harpo!ihnss!houxi!houxg!bem Thu May 6 15:13:01 1982 Re: An oldie but goodie As sophmores in EE learn, 1/j = -j. Given that 1 = -1, however, its simple to show that, for all x and y, x != y, x=y. Rather than these types of proofs, i prefer the so called proofs by intimidation e.g., To be forewarned is to be forearmed, at a given battle Alexander the Great was forewarned. Humans have two arms, therefore A. the G. wasn't human. By similar reasoning horses don't exist (forelegs, hindlegs, etc.)