THIS is a philosophical thesis by a writer who is really familiar with the subject of non-Euclidean geometry, and as such it is well worth reading. The first three chapters are historical; the ...

In February, I wrote about Euclid's parallel postulate, the black sheep of the big, happy family of definitions, postulates, and axioms that make up the foundations of Euclidean geometry. I included ...

Science and math skills are widely celebrated as keys to economic and technological progress, but abstract mathematics may seem bafflingly far from industrial optimization or medical imaging. Pure ...