This text contains a detailed introduction to general topology and an introduction to algebraic topology via its most classical and elementary segment. Proofs o
The Problem Solvers are an exceptional series of books that are thorough, unusually well-organized, and structured in such a way that they can be used with any
" . . . that famous pedagogical method whereby one begins with the general and proceeds to the particular only after the student is too confused to understand e
An antidote to mathematical rigor mortis, teaching how to guess answers without needing a proof or an exact calculation. In problem solving, as in street fighti