Ludo Philippaerts of 9 and a team rank of 7. He competed at the World Equestrian Games twice before, in 1998 and 1990. He was the BP Cup Champion in Spruce Meadows in 2006 and the 2006 winner of the Global Champions Tour. In 2005, his fourth consecutive year of competition in the Show Jumping World Cup, Philippaerts ranked 9th. He ranked 15th at the 1989 European Championships in Rotterdam. Philippaerts was born into an equestrian family. His brother, Johan Philippaerts, and his two older children are also show jumping riders. He and his wife Veronique have four children: Ludo Philippaerts Ludo
What Is Mathematics? What Is Mathematics? What Is Mathematics? is a mathematics book written by Richard Courant and Herbert Robbins, published in England by Oxford University Press. It is an introduction to mathematics, intended both for the mathematics student and for the general public. First published in 1941, it discusses number theory, geometry, topology and calculus. A second edition was published in 1996 with an additional chapter on recent progress in mathematics, written by Ian Stewart. The book was based on Courant's course material. Although Robbins assisted in writing a large part of the book, he had to fight for authorship. Nevertheless, Courant