Tõeväärtusi

Tõeväärtusi, meaning truth values in Estonian, is a fundamental concept in logic and computer science. It refers to the possible states of a statement or proposition being either true or false. In classical logic, there are only two possible truth values: true (often represented by T, 1, or "jah") and false (often represented by F, 0, or "ei"). Every declarative sentence or proposition is assigned one of these two values.

This binary system is the basis for propositional logic, where compound statements are formed by combining simpler ones using logical connectives like AND, OR, and NOT. The truth value of a compound statement is determined by the truth values of its constituent parts and the specific logical connective used. For example, an AND statement is only true if both of its components are true.

In some non-classical logics, such as fuzzy logic, more than two truth values are allowed, enabling the representation of degrees of truth between absolute true and absolute false. However, in standard propositional and predicate logic, the dichotomy of true and false remains the cornerstone. Understanding truth values is crucial for analyzing arguments, building logical circuits, and developing algorithms that rely on logical operations.