Assertion

An assertion is a statement or claim that someone makes, indicating that they believe something to be true. It functions as a way of stating an idea confidently, often used in arguments, discussions, or programming to verify certain conditions. For example, in everyday life, saying "The sky is blue" is an assertion of a fact. In programming, assertions check if specific conditions hold true during execution, helping to identify errors early. Overall, assertions express beliefs, facts, or checks intended to be accurate and meaningful within a particular context.