Circular Argument 

A circular argument, also known as circular reasoning or a circular fallacy, occurs when the conclusion of an argument is essentially the same as one of its premises or presuppositions. In other words, it is an argument in which the proposition being argued for is used to support itself. Circular arguments are logically invalid because they don't provide any new information or evidence, and they rely on an assumption to prove itself.

Examples and Types of Circular Fallacies

Circular arguments are considered logically invalid because they don't offer any genuine support for their conclusions. In a valid argument, the conclusion should be distinct from the premises and provide new information or insights. Recognizing and avoiding circular reasoning is essential in critical thinking and debate to ensure that arguments are based on sound logic and evidence.