English Etymology From pre- + topological. Adjective English Wikipedia has an article on:pretopological spaceWikipedia pretopological (not comparable) (mathematics) Relating to a pretopology 2015, John Reynolds, “H-closed Spaces and H-sets in the Convergence Setting”, in arXiv:Additionally, we define a version of H-closedness for pretopological spaces and investigate the properties of such a space..Wikiwand - on Seamless Wikipedia browsing. On steroids.