My Academic Genealogy:

	Erhard Weigel, DSc, PhD, MS.December 16, 1625–March 21, 1699) Professor of mathematics, astronomy and philosophy at the University of Leipzig. His PhD student was Gottfried Leibniz,: see Below.
	Gottfried Leibniz, Dsc, PhD, MS,22 April 1724 – 12 February 1804 Professor of Law at the University of Königsberg. His PhD student was Christian Wolff : see Below.
	Christian von Wolff, DSc, PhD, MS.24 January 1679 - 9 April 1754 Professor of mathematics and natural philosophy at the University of Halle and at the University of Königsberg. His PhD student was Immanuel Kant. see Below.
	Immanuel Kant, DSc, PhD, MS22 April 1724 – 12 February 1804 Professor of Logic and Metaphysics at the University of Königsberg. His PhD student was Karl Reinhold: see Below.
	Karl Reinhold, DSc, PhD, MS26 October 1757 - 10 April 1823 Professor of philosophy at the University of Jena. His PhD student was Friedrich Trendelenburg: see Below.
	Friedrich Trendelenburg, DSc, PhD, MS30 November, 1802–24 January, 1872 Professor of of Plato and Aristotle at the University of Jena and the Universität Berlin. His PhD student was Franz Brentanoi: see Below.
	Franz Brentano DSc, PhD, MSJanuary 16, 1838 - March 17, 1917, Zürich Professor of scholastic philosophy (philosophy and psychology at the University of Würzburg. His PhD student was Kazimierz Twardowski: see Below.
	Kazimierz Twardowski DSc, PhD, MSOctober 20, 1866 – February 11, 1938, Poland Professor of to metaphilosophy at Lemberg in Austrian Galicia (later Lwów, now Lviv in the Ukraine). His PhD student was Tadeusz Kotarbinski: see Below.
	Tadeusz Kotarbinski DSc, PhD, MSMarch 31, 1886 – October 3, 1981, Warsaw Professor of philosophy and logic at the Polish Academy of Learning (PAU) as well as the Polish Academy of Sciences (PAN). His PhD student was Henryk Greniewski: see Below/em>
	Henryk Greniewski DSc, PhD, MS(ur. 1903 r. - zm. 1972 r.) - polski matematyk, logik i informatyk Professor of logic Uniwersytetu Warszawskiego. His PhD student was Zdzisław Pawlak: see Below
	Zdzisław Pawlak DSc, PhD, MS10 listopada 1926 w Łodzi - zm. 7 kwietnia 2006 w Warszawie Professor of Electrical Engineering and Mathematics where he originated Rough Set Theory. His PhD student was Zbigniew Ras: see Below
	Zbigniew Ras DSc, PhD, MS
	Rory Lewis PhD, JD, BS