User Portlet

I have been an enthusiastic user of Mathematica since 1992, first as a physicist at Johns Hopkins University Applied Physics Laboratory and later as a retiree. I remain active as a member of a Washington DC area SIG group that mainly focus es upon Mathematica. While I no longer strive to appear in refereed journals, I nonetheless take a small amount of pride in being ranked by Google as the sole source of the empty set being described as a "venerable vessel of vacuity."