English Stone–Čech compactification Cited by user AxelBoldt on 31 Jan 2020 In the mathematical discipline of general topology, Stone–Čech compactification (or Čech–Stone compactification) is a technique for constructing a universal map from a…
English Tychonoff plank Cited by user AxelBoldt on 31 Jan 2020 In topology, the Tychonoff plank is a topological space defined using ordinal spaces that is a counterexample to several plausible-sounding conjectures.