Machine theory 24 Formal languages 23 Symbolic logic 15 History 11 Mathematics 9 Automata theory 7 Computer science 7 Cellular automata 6 Computational complexity 6 Authoritarianism 4 Automata 4 Democratization 4 Finite automata 4 Computable functions 3 Fuzzy sets 3 Group theory 3 Combinatorial analysis 2 Communism 2 Computer programming 2 Courts 2 Decision logic tables 2 Formal languages, Automata theory 2 Fuzzy languages 2 Graphic methods 2 Judicial process 2 Justice, Administration of 2 Lattice gas 2 Logic-- Set Theory-- Number Theory-- Automata Theory 2 MATHEMATICS / Algebra / General 2 Machine -theory 2