Logical Fallacies are errors in reasoning that render an argument invalid.

On the path of knowledge, recognizing logical fallacies is important for:

• Evaluating arguments critically

• Avoiding errors in one's own thinking

• Identifying means of ignorance

• Applying logic correctly

Common fallacies include ad hominem, straw man, false dichotomy, circular reasoning, and appeal to authority.

See also critical thinking, cognitive biases.