17 Answers votes newest views recent 12Mathematical “urban legends” 31Jokes in the sense of Littlewood: examples? 12Why should one still teach Riemann integration? 6What are some correct results discovered with incorrect (or no) proofs? 15Never appeared forthcoming papers 2Regular borel measures on metric spaces 3Can we unify addition and multiplication into one binary operation? To what extent can we find universal binary operations? 3Is P=NP relevant to finding proofs of everyday mathematical propositions? 13What are some interesting corollaries of the classification of finite simple groups? 1Fastest way to factor integers < 2^60 7Is there a universal countable group? (a countable group containing every countable group as a subgroup) 3What are the normal subgroups of a direct product? 1Does an “efficient” random number generator exist? 0The Riemann correspondence for riemann surfaces made explicit and its generalizations 1Can we ascertain that there exist an epimorphism $G\rightarrow H?$ 6“Radon-Nikodym theorem” for nonabsolute continuous measures 5Reference request: given a divisor d of N, how quickly can I obtain the largest factor of N coprime to d?