(logic) The formal fallacy of inferring that if an argument contains a fallacy, its conclusion must be false.

plural of fallacy fallacy

Deceptive or false appearance; that which misleads the eye or the mind.

The property of being fallacious.

Characterized by fallacy; false or mistaken. / Deceptive or misleading.

plural of fallacy

In a fallacious manner, erroneously, illogically.

(logic) A pattern of reasoning which is always wrong, due to a flaw in the structure of the argument.

(logic) A fallacy whose error cannot be represented by the symbols used in formal logic.

A fallacy of irrelevance where a conclusion is suggested based solely on something or someone's origin rather than its current meaning or context.