Ternary logic is a type of logic system that uses three truth values instead of the traditional two found in binary logic. The three values are typically represented as true, false, and unknown or indeterminate. This allows for more nuanced reasoning and can be useful in situations where information is incomplete or uncertain. In computer science and mathematics, ternary logic can enhance decision-making processes and improve the efficiency of certain algorithms. It is often implemented in fuzzy logic systems and can be applied in areas like artificial intelligence and quantum computing, where traditional binary logic may fall short.