Search and Browse the MSC 2000
54A05
Topological spaces and generalizations (closure spaces, etc.) → ZMATH
54A10
Several topologies on one set (change of topology, comparison of topologies, lattices of topologies) → ZMATH
54A15
Syntopogeneous structures → ZMATH
54A20
Convergence in general topology (sequences, filters, limits, convergence spaces, etc.) → ZMATH
54A25
Cardinality properties (cardinal functions and inequalities, discrete subsets) [See also 03Exx] {For ultrafilters, see 54D80} → ZMATH
54A99
None of the above, but in this section → ZMATH