Háromérték

Háromérték is a term originating from Hungarian, literally translating to "three-valued." It most commonly refers to a concept in logic, particularly in the field of three-valued logic systems. Unlike classical two-valued logic, which assigns a proposition to be either true or false, three-valued logic introduces a third truth value. This third value can represent various interpretations depending on the specific system, such as "unknown," "possible," "undefined," or "both true and false."

The development of three-valued logic systems began in the early 20th century, with notable contributions from mathematicians and logicians like Jan Łukasiewicz and Emil Post. These systems aim to address limitations of classical logic in representing situations where a simple true/false dichotomy is insufficient. Applications of three-valued logic can be found in areas like artificial intelligence, computer science (particularly in database theory and programming language semantics), and philosophical reasoning. Different three-valued logical systems exist, each with its own set of operators and truth-value assignments, leading to varying degrees of expressiveness and computational properties. The concept of "háromérték" therefore encapsulates the fundamental idea of moving beyond binary truth assignments in logical frameworks.