Bare assertion fallacy

The bare assertion fallacy is fallacy in formal logic where a premise in an argument is assumed to be true merely because it says that it is true.

One form of the fallacy may be summarized as follows:

* Fact 1: X claims statement A.
* Fact 2: X claims that X is not lying.
* Conclusion: Therefore, A is true.

Put into practice, this fallacy would read:

* Fact 1: This book says that goats can fly.
* Fact 2: This book says that it is true.
* Conclusion: Therefore, goats can fly.

Source: Bare assertion fallacy - Wikipedia, the free encyclopedia
See also: Ontological argument - Wikipedia, the free encyclopedia
Thanks: Quazy Quistian Question # 1 from No More Hornets by The Exterminator