1. Sets.- 2. Homogeneous Relations.- 2.1 Boolean Operations on Relations.- 2.2 Transposition of a Relation.- 2.3 The Product of Two Relations.- 2.4 Subsets and Points.- 2.5 References.- 3. Transitivity.- 3.1 Orderings and Equivalence Relations.- 3.2 Closures and Closure Algorithms.- 3.3 Extrema, Bounds, and Suprema.- 3.4 References.- 4. Heterogeneous Relations.- 4.1 Bipartite Graphs.- 4.2 Functions and Mappings.- 4.3 n-ary Relations in Data Bases.- 4.4 Difunctionality.- 4.5 References.- 5. Graphs: Associated Relation, Incidence, Adjacency.- 5.1 Directed Graphs.- 5.2 Graphs via the Associated Relation.- 5.3 Hypergraphs.- 5.4 Graphs via the Adjacency Relation.- 5.5 Incidence and Adjacency.- 5.6 References.- 6. Reachability.- 6.1 Paths and Circuits.- 6.2 Chains and Cycles.- 6.3 Terminality and Foundedness.- 6.4 Confluence and Church-Rosser Theorems.- 6.5 Hasse Diagrams and Discreteness.- 6.6 References.- 7. The Category of Graphs.- 7.1 Homomorphisms of 1-Graphs.- 7.2 More Graph Homomorphisms.- 7.3 Covering of Graphs and Path Equivalence.- 7.4 Congruences.- 7.5 Direct Product and n-ary Relations.- 7.6 References.- 8. Kernels and Games.- 8.1 Absorptiveness and Stability.- 8.2 Kernels.- 8.3 Games.- 8.4 References.- 9. Matchings and Coverings.- 9.1 Independence.- 9.2 Coverings.- 9.3 Matching Theorems.- 9.4 Starlikeness.- 9.5 References.- 10. Programs: Correctness and Verification.- 10.1 Programs and Their Effect.- 10.2 Partial Correctness and Verification.- 10.3 Total Correctness and Termination.- 10.4 Weakest Preconditions.- 10.5 Coverings of Programs.- 10.6 References.- General References.- Name Index.- Table of Symbols.
