👉 In mathematics, a "deciduas" refers to a set of statements that are either all true or all false. These statements can be expressed in any language, including natural languages and computer programs. For example, if we have the following two sets: 1. {x | x is a prime number} 2. {x | x is a positive integer} In this case, both sets are decidable because they contain true statements (all prime numbers) and false statements (only positive
