About Prolog
Developed in 1972 by Alain Colmerauer and Phillipe Roussel, Prolog is a logic programming language that gained popularity in natural-language processing. Now, the venerable language provides the programming foundation for a wide variety of problems, from scheduling to expert systems. You can use this rules-based language for expressing logic and asking questions. Like SQL, Prolog works on databases, but the data will consist of logical rules and relationships. Like SQL, Prolog has two parts: one to express the data and one to query the data. In Prolog, the data is in the form of logical rules. These are the building blocks:
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Facts. A fact is a basic assertion about some world. (Babe is a pig; pigs like mud.)
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Rules. A rule is an ...
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