see Mathematical Spaces for more details
- Mathematical Space (Basis)
- Mathematical Space (Boundary Sets - Boundary Points - Boundaryless)
- Mathematical Space (Bounded Sets - Unbounded Sets)
- Mathematical Space (Cauchy Sequences)
- Mathematical Space (Closures - Spans - Generated Sets)
- Mathematical Space (Compactness／Compact - Sequential／Sequentially／Limit-Point／Weakly-Countably／Countably／Countable Compactness／Compact - Relatively-Compact／Precompact Subspace／Subset)
- Mathematical Space (Cover／Covering - Open Cover／Covering - Subcover／Subcovering)
- Mathematical Space (Interior - Exterior)
- Mathematical Space (Limit Points - Accumulation Points - Cluster Points)
- Mathematical Space (Neighborhoods)
- Mathematical Space (Open Sets - Closed Sets - Clopen Sets)