Mathematical Sciences Classification System

54Axx - Generalities

  • 1
    54A05
    Topological spaces and generalizations (closure spaces, etc.)
  • 2
    54A10
    Several topologies on one set (change of topology, comparison of topologies, lattices of topologies)
  • 54A15
    Syntopogeneous structures
  • 1
    54A20
    Convergence in general topology (sequences, filters, limits, convergence spaces, etc.)
  • 54A25
    Cardinality properties (cardinal functions and inequalities, discrete subsets) [See also 03Exx] {For ultrafilters, see 54D80}
  • 54A35
    Consistency and independence results [See also 03E35]
  • 2
    54A40
    Fuzzy topology [See also 03E72]
  • 54A99
    None of the above, but in this section

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