Re:Mathematics for the Adventurous Self-Learner
by dougabug on Monday February 24, 2020 @07:08PM
(#22409739)
He has elementary textbooks on calculus and differential equations, as well, so you get an entire development from precalculus all the way to topology and analysis from the coherent viewpoint of a legit (but sympathetic) mathematician.
George F. Simmons, Introduction to Topology and Modern Analysis.
I studied it one summer in an NSF program at Vanderbilt. Then I concluded that he is one heck of a good math writer.