Lattice theory 42 Dissertations, Academic (Ph.D) 4 Ordered sets 3 MATHEMATICS / Number Theory 2 Mathematics 2 Number theory 2 Ordered algebraic structures 2 Thesis (Ph.D)-Mathematics 2 Algebra, Boolean 1 Algebra, Universal 1 Axioms 1 Categories (Mathematics) 1 Combinatorial packing and covering 1 Congresses 1 Continuum Theory 1 Convex sets 1 Cryptography 1 Crystal lattices 1 Crystallography, Mathematical 1 Data encryption (Computer science) 1 Data reduction 1 Decision theory 1 Discoveries in science 1 Finite groups 1 Fuzzy numbers 1 Fuzzy sets 1 Geometry of numbers 1 Image processing 1 Lattice Theory 1 Lattice theory- History 1