StevenXClontz’s avatarStevenXClontz’s Twitter Archive—№ 8,359

    1. …in reply to @sbagley
      @sbagley A fun exercise I went through in recent years for my research was recasting properties of sequences in terms of countable sets. Things like "a set-sequence S converges to L if L is the unique point for which every nbhd misses finitely-many points of S".
  1. …in reply to @StevenXClontz
    @sbagley It's helpful because set-sequences in a function space are naturally dual to open "γ-covers" (every cofinite subset covers) in the base space.