Intuitive Concepts in Elementary Topology became a rallying point of

became a rallying point of the poetic avant-garde during the late nineteenth century throughout Western Europe and the United States

curves of high degree

and the derivation of the Onsager reciprocal relations

Graph set number theory

Intuitive Concepts in Elementary Topology became a rallying point ofClassroom tested and much cited, this concise text offers a valuable and instructive introduction for undergraduates to the basic concepts of topology. It takes an intuitive rather than an axiomatic viewpoint, and can serve as a supplement as well as a primary text. A few selected topics allow students to acquire a feeling for the types of results and the methods of proof in mathematics, including mathematical induction. Subsequent problems deal with