Editing Leonard Peikoff (section)

==Early life and career==
Leonard Peikoff was born on October 15, 1933<ref name=cao>''Contemporary Authors Online'', s.v. "Leonard Peikoff." Accessed March 2, 2008.</ref> in [[Winnipeg]], [[Manitoba]], Canada, to Samuel Peikoff, [[Doctor of Medicine|MD]], a surgeon, and his wife Bessie, a band leader.<ref>{{cite book |last=Peikoff |first=Samuel |title=Yesterday's Doctor: An Autobiography |location=Winnipeg |publisher=Prairie Publishing |year=1980 |isbn=0-919576-16-8}}</ref> He attended the [[University of Manitoba]] from 1950 to 1953 as a pre-med student. However, following his early discussions with Rand, he transferred to [[New York University]] to study philosophy, where he received his BA, MA, and PhD degrees in philosophy in 1954, 1957, and 1964, respectively. His doctoral dissertation adviser was the noted American [[Pragmatism|pragmatist]] philosopher [[Sidney Hook]], and his dissertation dealt with the [[metaphysics|metaphysical]] status of the [[law of noncontradiction]]. He taught philosophy for many years at various colleges.<ref name=cao />