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Prolog programs are often described as declarative, although they unavoidably also have a procedural element. Programs are based on the techniques developed by logicians to form valid conclusions from available evidence. There are only two components to any program: facts and rules. The Prolog system reads in the program and simply stores it.
Logic Programming with PROLOG. 5. Compared to classical programming languages such as C or Pascal, Logic makes it possible to express relationships elegantly, compactly, and declaratively. Automated theorem provers are even capable of deciding whether a knowledge base logically entails a query.
Alternative Logic Programming Schemes. The rst part deals with the logical aspects of logic programming and tries to provide a logical understanding of the programming language Prolog. Logic programs consist of logical formulas and computation is the process of deduction or proof construction.
These lecture notes introduce the declarative programming language Prolog. The em-phasis is on learning how to program, rather than on the theory of logic programming. Nevertheless, a short chapter on the logic foundations of Prolog is included as well.
School of Computing, University of Portsmouth, Portsmouth, United Kingdom. Features two entirely new chapters as well as updates to the chapters from the first edition. Clearly written, with many worked examples and self- assessment exercises. Fully compatible with SWI-Prolog. 43k Accesses.
Prolog is a high-level logic programming language (PROgramming in LOGic); Good at pattern matching (by unification) and searching; Not very good for repetitive number crunching;
A PROLOG program, essentially a logic program consisting of Horn clauses (which how- ever may contain some directives for controlling the inference method), is entered into the PROLOG database by the programmer.
