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Circular Logic
Category: Fallacy
What is it?
Also known as 'begging the question', this fallacy occurs when an argument's premises assume the truth of the conclusion, instead of supporting it. It's like saying 'X is true because X is true.'
Examples
"The Bible is the word of God because it says so in the Bible."
"He is a good communicator because he speaks effectively."
How to Avoid This
Ensure your premises are independent of your conclusion. You should be able to establish the truth of your premises without already believing your conclusion.
How to Counter This
Point out that the argument is circular. 'You're assuming what you're trying to prove. Can you provide any external evidence for your claim?'