From Here to Infinity - Ian Stewart, Professor of Math and Gresham Professor of Geometry Ian Stewart - Google Books

https://books.google.de/books?id=mbSb1FFx20QC&pg=PA169#v=onepage

In this retitled and revised edition of The Problems of Mathematics, renowned mathematician Ian Stewart gives math buffs and non-technical readers--as well as students of the subject--the perfect guide to today's mathematics. This challenging and…