HomePhilosophyLogicWhat is Circular Reasoning?
Philosophy·2 min·Updated Mar 12, 2026

What is Circular Reasoning?

Circular Reasoning

Quick Answer

Circular reasoning is a logical fallacy where the conclusion is included in the premise, essentially arguing in a circle. This means that the argument does not provide any real evidence or support for its conclusion.

Overview

Circular reasoning occurs when an argument's conclusion is used as a premise without any additional support. This type of reasoning does not advance the discussion because it simply restates the original claim in different words. For example, saying 'I am trustworthy because I always tell the truth' does not provide any real evidence of trustworthiness; it just reaffirms the claim without supporting it with facts. In the context of logic, circular reasoning is problematic because it fails to provide a solid foundation for arguments. It often leads to confusion and misunderstanding, as the logic does not progress forward. Instead of convincing someone of a point, it leaves them in the same position, as the reasoning does not introduce new information or perspectives. Understanding circular reasoning is important because it helps individuals identify weak arguments in discussions, debates, or everyday conversations. By recognizing when someone is using circular reasoning, one can challenge the argument and seek clearer, more substantiated claims. This skill is valuable in both academic settings and personal interactions.


Frequently Asked Questions

Common examples include statements like 'The Bible is true because it says so in the Bible' or 'I'm right because I know I'm right.' These examples show how the argument does not provide any new information or evidence to support the conclusion.
To avoid circular reasoning, ensure that your premises provide independent support for your conclusion. It's helpful to ask yourself if your argument relies on the conclusion itself or if it introduces new evidence or reasoning that stands on its own.
Circular reasoning is considered a fallacy because it does not contribute to a logical or rational argument. Instead of proving a point, it merely restates it, which can mislead or confuse the audience, making it essential to recognize and address this flaw in reasoning.