Logic Fallacy =  Bad Argument.

If you have every argued with another human (and if you read this blog then I bet that you have) at some point you have certainly heard logic fallacies.

Recognizing and discrediting them is an easy way to win almost any debate. Even when you are in the wrong. But, like a timely joke, it’s so hard to remember them when you need them.

No longer! In this series we present the most common logic fallacies in their most basic forms

Here’s number seven in our “Easy-Peasy guide to Winning Arguments and Losing Friends”. But don’t worry, most of your soon to be ex-friends are fallacious losers anyways.

Number 6

Circular Reasoning

(frequency: very common)
(aka Begging the Question, Petitio Principii, Tautology)

Simply put: A = A

In Circular Reasoning the conclusion is proved true by assuming the premise (either stated or not) is true. In other words, it assumes what it is trying to prove.

Circular Reasoning is a logic fallacy because it can only be judged true by those who already accept the validity of it’s conclusion.

Pretty much every argument ever made by Ayn Rand is this type of logic fallacy.



We know that Bible is correct because it is the word of God and he is always right.

Word151 has intelligent articles because only smart people choose to write for it.

Witches float because they are made of wood.

Women have the right to an abortion so abortion should be legal.


Whenever you encounter Circular Reasoning the best defence is to re-wind the discussion back to the original statement and proceed again “highlighting” every instance of the conclusion creeping back in disguised as the “proof”.


WARNING:  This fallacy comes in many variations and is very hard to catch (even by the guilty party). That is why stupid people tend to rely on it so heavily. A good “heads-up” is to remember that the more ignorant your opponent the more likely that they will rely on Circular Reasoning.