Abstract

• This paper attempts to show why people commit logical fallacies in reasoning. The study of logic helps them learn how to distinguish good reasoning from bad reasoning and provides them criteria for evaluating reasoning as good or bad. Men as rational beings are capable of performing acts of reasoning, but most people ignore the method and principle of logic. They use irrelevant premises, ambiguous words or phrases or statements and unwarranted assumptions in communicating with others. These are causes of committing logical mistakes. To solve the problem the descriptive method and evaluative method will be used. This paper will contribute to knowledge that the role of logic is very important to avoid the logical errors in daily life.