Midwest Philosophy of Mathematics Workshop - http://philosophy.nd.edu/news/events/philosophy-math-conference/index.shtml An annual conference. Last meeting: University of Notre Dame, Indiana, USA; 11-12 November 2006.
20th WCP: Philosophy of Mathematics - http://www.bu.edu/wcp/MainMath.htm Papers given at the Twentieth World Congress of Philosophy; Boston, Massachusetts, USA; 10--15 August 1998.
The Nature of Mathematical Proof - http://royalsociety.org/event.asp?id=1334 A Royal Society Discussion Meeting. London, UK; 18--19 October 2004.
Foundation of the Formal Sciences IV - http://www.math.uni-bonn.de/people/fotfs/IV/ The History of the Concept of the Formal Sciences. Rheinische Friedrich-Wilhelms-Universität Bonn, Germany; 14--17 February 2003.
PMP2002 - http://www.vub.ac.be/CLWF/PMP2002/ Perspectives on Mathematical Practices, an International Conference on the Philosophy of Mathematics. Brussels University (VUB), Belgium; 24--26 October 2002.
Alfred Tarski Centenary Conference - http://www.mimuw.edu.pl/TARSKI/ Stefan Banach International Mathematical Center, Warsaw, Poland; 28 May -- 1 June 2001.
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