Horn Clause

A Horn clause is a type of logical statement used in computer science and mathematics, particularly in logic programming. It consists of a condition (called the "body") and a conclusion (the "head"). If all the conditions in the body are true, then the conclusion must also be true. In simple terms, it's like saying, "If certain things are true, then a specific result follows." Horn clauses are fundamental in constructing algorithms and reasoning systems because they provide a clear, efficient way to represent logical relationships and make deductions.