Logic is a skill that strengthens and develops the rational powers of the mind free of empty formulas, arbitrary rules, artificial proceedings, which are neither consistent with themselves nor with the things to which they are applied. false habits, and distorted facts, all of which are influenced by the past, old habits, self-serving interests, tradition, ignorance, indifference, impatience, and disappointment. Logical fallacies is an error in reasoning. A fallacy is an argument that gives premises to a conclusion but, it the premise does not support the conclusion. We will explore how to support an argument properly and detect errors in other arguments.