Horn Clauses

Horn clauses are a type of logical statement used in computer science and artificial intelligence to represent knowledge efficiently. They consist of a rule that states: if certain conditions are true, then a specific conclusion is also true. For example, "If it is cloudy and rainy, then it is likely to be wet outside." This structure helps computers reason and make decisions based on known facts and rules, forming the foundation for logic programming languages like Prolog. Essentially, Horn clauses enable logical inference by linking conditions and outcomes in a clear, structured way.