54Axx Generalities ( 0 Dok. )

• 54A05 Topological spaces and generalizations (closure spaces, etc.) ( 0 Dok. )
• 54A10 Several topologies on one set (change of topology, comparison of topologies, lattices of topologies) ( 0 Dok. )
• 54A15 Syntopogeneous structures ( 0 Dok. )
• 54A20 Convergence in general topology (sequences, filters, limits, convergence spaces, etc.) ( 0 Dok. )
• 54A25 Cardinality properties (cardinal functions and inequalities, discrete subsets), See also {03Exx, 04A30}, {For ultrafilters, See 54D80} ( 0 Dok. )
• 54A35 Consistency and independence results, See also {03E35} ( 0 Dok. )
• 54A40 Fuzzy topology, See also {04A72} ( 0 Dok. )
• 54A99 None of the above but in this section ( 0 Dok. )