1. Operations on Propositions.- 2. Logical Functions. Normal Forms.- 3. Law of Duality in Algebraic Logic.- 4. Arithmetic Operations in Algebraic Logic.- 5. Monotone Logical Functions.- 6. Functionally Closed Classes and Post's Theorem.- 7. The General Theory of Functionally Closed Classes.- 8. Networks of Functional Elements.- 9. Relay-Contact Networks. Estimating the Complexity of a Contact Network.- 10. Elements of Probabilistic Logic.- 11. Multi-Valued Logics.- 12. Predicate Logic.- Literature.