Michael Everson scripsit: > Surely a 0 with stroke, not a O with stroke.
MathWorld shows a GIF that is definitely a circle with stroke at http://mathworld.wolfram.com/EmptySet.html , and notes that 0 (no slash) is a variant but dispreferred notation. -- Yes, chili in the eye is bad, but so is your John Cowan ear. However, I would suggest you wash your [EMAIL PROTECTED] hands thoroughly before going to the toilet. http://www.reutershealth.com --gadicath http://www.ccil.org/~cowan
