The fallacy of reaching an affirmative conclusion from a negative premise is a part of formal logic. That is, the problem with the fallacy is with how the argument is structured and not its content. How this fallacy occurs is explained by its name. Nonetheless, in order to understand it better we have to call…
Category: Formal Fallacies
Formal fallacies are invalid deductive arguments. This category of fallacies refers to the situation where one or more flaws arise in the logical structure of the argument, as can be expressed in a standard logic system. The premises of a formal fallacy may be sound.
Conjunction Fallacy
Base Rate Fallacy
The ¨Fallacy Fallacy¨
Appeal to Probability
Affirming The Consequent
Affirming A Disjunct
In propositional logic, when two propositions are connected with “or”, a disjunctive syllogism is formed. When we don’t use this syllogism carefully, we fall prey to the affirming a disjunct fallacy. Fallacy example 1: “Tom either likes blondes or brunettes” Possible conclusion: If Tom likes blondes, he doesn’t like brunettes. Fallacy example 2: “You either…