Within Fallacy Lab
Is the Argument Proving Itself?
Circular reasoning restates the conclusion as support, leaving the real question unanswered.
On this page
- Begging the question
- Hidden circular premises
- Independent support
Page outline Jump by section
Introduction
Circular reasoning and unsupported conclusions are central mechanisms of a common informal logical fallacy in which an argument fails to provide independent support for its claim. At its core, this type of reasoning uses the conclusion itself — or something virtually equivalent — as its own justification. The result is an argument that seems to work because it loops back on itself, but on closer inspection no new evidence or reasoning enters the chain. This fallacy is especially misleading because it can feel persuasive even while being uninformative: the conclusion appears to follow from the premises only because the premises already assume what they set out to prove.[Wikipedia]WikipediaCircular reasoningCircular reasoning
Begging the Question: When the Argument Presumes Its Conclusion
A classic way circularity shows up in reasoning is through the fallacy called begging the question, also known by its Latin name petitio principii. Here, one of the premises in an argument assumes the very claim that the argument is supposed to establish. In other words, the argument never gets off the ground because it starts by presuming what it is meant to demonstrate.[Scribbr]scribbr.comBegging the Question Fallacy | Definition & ExamplesBegging the Question Fallacy | Definition & ExamplesMay 31, 2023…
In its simplest form, begging the question can look like a tautology:[scribbr.com]scribbr.comBegging the Question Fallacy | Definition & ExamplesBegging the Question Fallacy | Definition & ExamplesMay 31, 2023…
“God exists because the Bible says so, and the Bible is true because it is the word of God.”
In this example, the premise doesn’t offer independent evidence for God’s existence; it merely appeals to a source whose authority itself depends on the claim being established. This gives the illusion of support while introducing no new information.[Scribbr]scribbr.comBegging the Question Fallacy | Definition & ExamplesBegging the Question Fallacy | Definition & ExamplesMay 31, 2023…
More subtle instances disguise the circularity behind rephrasing, loaded language, or unstated assumptions. For example, saying “Opium puts people to sleep because it contains soporific properties” is circular because soporific literally means “sleep-inducing,” so the reason and the conclusion are effectively the same claim in different words.[logicalfallacies.org]logicalfallacies.orgBegging The QuestionDefinition & Examples | LF…
Hidden Circular Premises: Where the Loop Hides
One challenge with circular reasoning is that the circularity is not always explicit. In simple cases, it’s obvious when the conclusion is restated in the premises, but more complex chains of reasoning can hide the loop step by step. A chain of assertions like:
- A is true because B is true.
- B is true because C is true.
- C is true because A is true.
creates a closed loop, but each individual step seems to offer support — except that the chain never connects back to any independent evidence. This type of circularity is often concealed by additional context or persuasive wording, making it harder to detect without diagramming the argument or scrutinising its structure.[Fallacy Files]fallacyfiles.orgFallacy Files Logical Fallacy: Begging the QuestionFallacy Files Logical Fallacy: Begging the Question
Philosophical treatments of circular arguments discuss how this looping can be disguised when premises and conclusions are restated in synonymous ways or when intermediate steps mask the underlying dependency.[Fallacy Files]fallacyfiles.orgFallacy Files Logical Fallacy: Begging the QuestionFallacy Files Logical Fallacy: Begging the Question
Circular Reasoning vs. Independent Support
At a practical level, the defining problem with circular reasoning and unsupported conclusions is lack of independent support. In a sound argument, the premises should provide reasons that someone who doubts the conclusion could nonetheless accept. By contrast, circular reasoning assumes the conclusion within its premises, so the argument only convinces people who already accept the conclusion.[Wikipedia]WikipediaCircular reasoningCircular reasoning
For example, saying:
“This news source is reliable because it only publishes accurate stories, and we know the stories are accurate because the source is reliable.”
presents a loop: reliability is supported by accuracy and accuracy by reliability. Unless some external, independently justified evidence about accuracy or reliability is offered, the argument never leaves the loop.[Rebutly]rebutly.comCircular Reasoning Fallacy — Definition, Examples & How to Counter | RebutlyCircular Reasoning Fallacy — Definition, Examples & How to Counter | Rebutly…
This lack of independent evidence is what distinguishes mere repetition from genuine support. It is why circular reasoning is treated as a fallacy in informal logic: it fails to advance understanding or justify belief beyond what the audience already assumes.[Wikipedia]WikipediaCircular reasoningCircular reasoning
Why Circular Arguments Are Unconvincing
Despite often being valid in the strict formal sense — if the premises are true, then the conclusion is also true — circular arguments are weak as explanations or justifications because they provide no reason to accept the premises other than already believing the conclusion. In informal logic, this is what makes them fallacious: the argument fails to connect why something should be accepted to any evidence or reasoning external to the claim itself.[Wikipedia]WikipediaCircular reasoningCircular reasoning
This is why writers and debaters are encouraged to ask whether premises would still be persuasive to someone who doubts the conclusion. If not, the argument may be merely circular rather than genuinely supportive.[Rebutly]rebutly.comCircular Reasoning Fallacy — Definition, Examples & How to Counter | RebutlyCircular Reasoning Fallacy — Definition, Examples & How to Counter | Rebutly…
Practical Detection and Avoidance
Recognising circular reasoning often involves:(#endnote-1 “Endnote 1”)[Wikipedia]WikipediaCircular reasoningCircular reasoning
- Checking for restatement: Is the conclusion essentially repeated in the premises?
- Seeking independent evidence: Does the argument introduce information not already assumed by the conclusion?
- Rephrasing the argument: Can the seemingly supportive statement be reduced to a form that shows the loop?
Being alert to these patterns helps distinguish between arguments that justify a conclusion and those that merely reflect it back on itself.[Rebutly]rebutly.comCircular Reasoning Fallacy — Definition, Examples & How to Counter | RebutlyCircular Reasoning Fallacy — Definition, Examples & How to Counter | Rebutly…
Circular reasoning and unsupported conclusions remind us that good argumentation requires premises that stand on their own, not just mirrors of what we’re trying to prove. Without such independent support, an argument may seem persuasive but ultimately fails to do the work of genuine reasoning.[Wikipedia]WikipediaCircular reasoningCircular reasoning
eBay marketplace picks
Marketplace Samples
Example marketplace items related to this page. Use the search link to explore similar finds on eBay.
Endnotes
1.
Source: Wikipedia
Title: Circular reasoning
Link:https://en.wikipedia.org/wiki/Circular_reasoning
2.
Source: scribbr.com
Title: Begging the Question Fallacy | Definition & Examples
Link:https://www.scribbr.com/fallacies/begging-the-question-fallacy/
Source snippet
Begging the Question Fallacy | Definition & ExamplesMay 31, 2023...
Published: May 31, 2023
3.
Source: logicalfallacies.org
Title: Begging The Question
Link:https://www.logicalfallacies.org/begging-the-question.html
Source snippet
Definition & Examples | LF...
4.
Source: rebutly.com
Title: Circular Reasoning Fallacy — Definition, Examples & How to Counter | Rebutly
Link:https://rebutly.com/fallacies/circular-reasoning
Source snippet
Circular Reasoning Fallacy — Definition, Examples & How to Counter | Rebutly...
5.
Source: logical-fallacy.com
Title: Begging the Question
Link:https://www.logical-fallacy.com/articles/begging-the-question/
Source snippet
Definition and Examples - Logical FallacyNovember 3, 2020 — BEGGING THE QUESTION - DEFINITION AND EXAMPLES 2020-11-03 DEFINITION Begging...
Published: November 3, 2020
6.
Source: logical-fallacy.com
Title: Circular Reasoning
Link:https://www.logical-fallacy.com/articles/circular-reasoning/
Source snippet
Definition and Examples - Logical FallacyOctober 2, 2020 — CIRCULAR REASONING - DEFINITION AND EXAMPLES 2020-10-02 What we detect CONTENT...
Published: October 2, 2020
7.
Source: logicalfallacies.org
Title: Circular Reasoning
Link:https://www.logicalfallacies.org/circular-reasoning.html
Source snippet
Definition & Examples | LFCIRCULAR REASONING informal Fallacy The fallacy of circular reasoning occurs when a person assumes the truth of...
8.
Source: scribbr.co.uk
Title: Scribbr Begging the Question Fallacy | Definition & Examples
Link:https://www.scribbr.co.uk/fallacy/the-begging-the-question-fallacy/
Source snippet
Begging the Question Fallacy | Definition & ExamplesJune 1, 2023...
Published: June 1, 2023
9.
Source: fallacyfiles.org
Title: Fallacy Files Logical Fallacy: Begging the Question
Link:https://www.fallacyfiles.org/begquest.html
10.
Source: scribbr.co.uk
Title: Circular Reasoning Fallacy | Definition & Examples
Link:https://www.scribbr.co.uk/fallacy/circular-reasoning/
Source snippet
Revised on 21 August 2023. The circular reasoning fallacy is an argument that assumes the very t...
Published: August 2023
11.
Source: philosophy.lander.edu
Link:https://philosophy.lander.edu/logic/circular.html
Source snippet
Principii, Circular Argument, Begging the QuestionIMAGEPETITIO PRINCIPII (Begging the Question or Circular Argument) Abstract: Petitio pr...
Additional References
12.
Source: britannica.com
Link:https://www.britannica.com/topic/circular-argument
Source snippet
Circular argument | Definition, History, Examples, & Facts | BritannicaCIRCULAR ARGUMENT logic Also known as: begging the question, petit...
13.
Source: fallacyguide.com
Link:https://fallacyguide.com/fallacies/begging-the-question
Source snippet
SummaryExplanationPatternWhy it mattersExamplesOften Confused WithFAQFurther Reading PresumptionAKA: Circular Reasoning THE BEGGING THE Q...
14.
Source: fallacies.online
Title: Take for example the following statement: > The Bible is God’s W
Link:https://fallacies.online/wiki/logic/formal_fallacies/circular_reasoning
Source snippet
Circular reasoning – Fallacies OnlineJanuary 25, 2023 — CIRCULAR REASONING A form of logical fallacy in which the position that still has...
Published: January 25, 2023
15.
Source: youtube.com
Title: Critical Thinking #16: Begging the Question
Link:https://www.youtube.com/watch?v=N6U56pMc4_s
Source snippet
Circular reasoning begging the question fallacy Simpsons [Logical Fallacies]({{ 'logical-fallacies/' | relative_url }}): Circular Reasoning Colburn Classroom...
16.
Source: link.springer.com
Link:https://link.springer.com/article/10.1007/s10503-024-09640-1
Source snippet
Around in Circles | Argumentation | Springer Nature LinkNovember 29, 2024 — GOING AROUND IN CIRCLES Begging the Question and the Structur...
Published: November 29, 2024
17.
Source: asa3.org
Link:https://www.asa3.org/ASA/education/think/circular.htm
Source snippet
In this fallacy...
18.
Source: youtube.com
Title: Are you Begging the Question?
Link:https://www.youtube.com/watch?v=OAXKc-rvMa8
Source snippet
Critical Thinking #16: Begging the Question...
19.
Source: youtube.com
Title: Circular reasoning and begging the question
Link:https://www.youtube.com/watch?v=3aizAxS5Fm0
Source snippet
Are you Begging the Question? - Gentleman Thinker...
20.
Source: youtube.com
Title: What is Circular Reasoning?
Link:https://www.youtube.com/watch?v=YyigEEx5194
Source snippet
Circular reasoning and begging the question...
21.
Source: youtube.com
Title: Simpsons Logical Fallacies: Circular Reasoning
Link:https://www.youtube.com/watch?v=hH8VttNKiO8
Source snippet
What is Circular Reasoning?...
Topic Tree