Fallacy, in logic, erroneous reasoning that has the appearance of soundness. In logic an argument consists of a set of statements, the premises, whose truth supposedly supports the truth of a single statement called the conclusion of the argument. For them, a fallacy is reasoning that comes to a conclusion without the evidence to support it.

Understanding the Context

This may have to do with pure logic, with the assumptions that the argument is based on, or with the way words are used, especially if they don't keep exactly the same meaning throughout the argument. A logical fallacy is an argument that may sound convincing or true but is actually flawed, leading to an unsupported conclusion. FALLACY definition: 1. an idea that a lot of people think is true but is in fact false: 2.

Key Insights

an idea that a lot of…. Learn more. FALLACY definition: a deceptive, misleading, or false notion, belief, etc.. See examples of fallacy used in a sentence.