Kolmetõeväärtuslik

Kolmetõeväärtuslik is an Estonian term that translates to "three-valued" in English. It most commonly refers to a type of logic, known as three-valued logic or ternary logic, which extends classical two-valued (true/false) logic by introducing a third truth value. This third value can represent various concepts depending on the specific system of three-valued logic being used.

Common interpretations for the third truth value include "unknown," "undefined," "irrelevant," or "possible." In such systems, a proposition can be true, false, or possess this intermediate truth value. This allows for a more nuanced representation of information and reasoning, particularly in situations where certainty is not absolute.

Three-valued logic finds applications in areas such as computer science, artificial intelligence, philosophy, and linguistics. For instance, in database systems, a field might have a value that is not just present or absent, but also explicitly marked as unknown. In AI, it can be used to model situations where an agent has incomplete information. The development and study of these logics are ongoing, with various formalisms and interpretations continuing to be explored. The concept of kolmetõeväärtuslik is therefore foundational to understanding these non-classical logical systems.