2Ī red herring is an attempt to shift focus from the debate at hand by introducing an irrelevant point.Įxample: Losing a tooth can be scary, but have you heard about the Tooth Fairy? 3Ī straw man argument is one that argues against a hyperbolic, inaccurate version of the opposition rather than their actual argument.Įxample: Erin thinks we need to stop using all plastics, right now, to save the planet from climate change. 1Īn ad hominem fallacy is one that attempts to invalidate an opponent’s position based on a personal trait or fact about the opponent rather than through logic.Įxample: Katherine is a bad choice for mayor because she didn’t grow up in this town. Take a look at fifteen of the most commonly used logical fallacies. What are 15 common types of logical fallacies?Īs you’ll see below, there are a lot of ways an argument can be flawed. That way, they’ll stick out to you when you’re reading your first draft, and you’ll see exactly where your writing needs thoughtful revision. The best way to avoid making logical fallacies in your own writing is to familiarize yourself with them and learn how to recognize them. But in some cases, the writer or speaker does intend to make a flawed argument, usually in an attempt to sway readers’ opinions or make their opposition look worse. Usually, people make these kinds of statements because they haven’t taken the time to think through them logically, not because they intend to make flawed arguments. Our brains aren’t perfect, and even smart people can fall prey to making logically inconsistent statements and arguments. Logical fallacies aren’t restricted to just one age group, political affiliation, gender, race, religion, subculture, or other shared characteristic-they’re universally human. They can even show up in expository writing. But keep in mind that they can and often do appear in academic writing, especially in the kinds of writing where the author has to defend a position, like argumentative essays and persuasive writing. In fact, we can almost guarantee that you’ve encountered logical fallacies on social media, especially in the comments under divisive posts. You’ll find logical fallacies just about anywhere you find people debating and using rhetoric, especially in spaces that aren’t academic or professional in nature. Today, our understanding of logical fallacies comes from these sources as well as contributions from later scholars like Richard Whately and Francis Bacon. By Aristotle’s definition, a verbal fallacy is one where the language used is ambiguous or incorrect, and a material fallacy is an argument that involves faulty or flawed reasoning. He identified thirteen fallacies, divided into verbal and material fallacies, in his work Sophistical Refutations. Greek philosopher Aristotle also wrote about logical fallacies. This text, written somewhere between the 6th century BCE and the 2nd century CE and attributed to Akṣapāda Gautama, identified five distinct ways that an argument could be logically flawed. Logical fallacies are likely as old as language itself, but they were first recognized and cataloged as such in the Nyāya-Sūtras, the foundational text of the Nyāya school of Hindu philosophy. Although both statements can be proven wrong by going outside without a coat and staying perfectly healthy (and by pointing to the proven fact that the only way to catch a cold is to be exposed to a virus ), the first one is simply incorrect, not logically flawed. Then your sister will have to miss class and she’ll get a bad grade and fail her course.Ĭan you spot the logical fallacy in the second argument? It’s a slippery slope fallacy, a position that claims that very specific consequences will follow an action. If you go outside without a coat, you’ll catch a cold and infect the rest of the family.If you go outside without a coat, you’ll catch a cold.Only one of them contains a logical fallacy: This is different from a subjective argument or one that can be disproven with facts for a position to be a logical fallacy, it must be logically flawed or deceptive in some way.Ĭompare the following two disprovable arguments. Grammarly helps you communicate efficiently Write with Grammarly What is a logical fallacy?Ī logical fallacy is an argument that can be disproven through reasoning.
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