William Wistar "Wis" Comfort II, the Edward Burr Van Vleck Professor of Mathematics, Emeritus, died Nov. 28 at the age of 83. Comfort received his BA from Haverford College, and an MSc and PhD from the University of Washington (Seattle) and was an expert on point-set topology, ultrafilters, set theory and topological groups. He joined the Wesleyan faculty in 1967 after teaching at Harvard, University of Rochester and University of Massachusetts (Amherst). Comfort taught in the mathematics department for 40 years until his retirement in 2007, where he supervised 17 PhD theses and three MA theses. He was a key…