1) Algebras
2) Graphs and Hypergraphs
3) Partial Ordered sets
4) Lattices and Boolean Algebras
5) Conceptual lattice
6) Topology
7) Frequent Item Sets and Association Rules
8) Rough Sets
9) Approximation Spaces,
10) Dissimilarities, Metrics, and Ultrametrics
11) Dimensions and The Dimensionality Curse
12) Clustering
13) Combinatorics, Vapnik-Chervonenkis Dimension
2) Graphs and Hypergraphs
3) Partial Ordered sets
4) Lattices and Boolean Algebras
5) Conceptual lattice
6) Topology
7) Frequent Item Sets and Association Rules
8) Rough Sets
9) Approximation Spaces,
10) Dissimilarities, Metrics, and Ultrametrics
11) Dimensions and The Dimensionality Curse
12) Clustering
13) Combinatorics, Vapnik-Chervonenkis Dimension