![]() ![]() However, there are many extensions of this simple case, the most important one being the case in which conditions in the body of a clause can also be negations of atomic formulas. ![]() , B n are all atomic formulae, these clauses are called definite clauses or Horn clauses. Facts are rules that have no body, and are written in the simplified form: H is called the head of the rule and B 1. In all of these languages, rules are written in the form of clauses:Īnd are read declaratively as logical implications: Major logic programming language families include Prolog, answer set programming (ASP) and Datalog. Any program written in a logic programming language is a set of sentences in logical form, expressing facts and rules about some problem domain. Logic programming is a programming paradigm which is largely based on formal logic. Programming paradigm based on formal logic Programming paradigms ![]()
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