Chapter 4 Flashcards
Formal fallacy
A logical error that occurs in the form or structure of an argument and is restricted to deductive arguments.
Informal fallacy
A mistake in reasoning that occurs in ordinary language and concerns the content of the argument rather than its form.
Ad hominem abusive:
The fallacy is distinguished by an attack on alleged character flaws of a person instead of the person’s argument.
Ad hominem circumstantial:
When someone’s argument is rejected based on the circumstances of the person’s life.
Poisoning the well:
The fallacy occurs when a person is attacked before she has a chance to present her case.
Tu quoque
The fallacy is distinguished by the specific attempt of one person to avoid the issue at hand by claiming the other person is a hypocrite.
Appeal to the people:
The fallacy occurs when an argument manipulates a psychological need or desire, such as the desire to belong to a popular group, or the need for group solidarity, so that the reader or listener will accept the conclusion
Appeal to pity:
The fallacy results from an exclusive reliance on a sense of pity or mercy for support of a conclusion.
Appeal to fear or force:
A threat of harmful consequences (physical or otherwise) used to force acceptance of a course of action that would otherwise be unacceptable
Fallacies Based on Personal Attacks
Occur when an argument is rejected solely on an attack against the person making the argument, not on the merits of the argument itself
Fallacies Based on Emotional Appeals
Occur when an argument relies solely on the arousal of a strong emotional or psychological reaction to get a person to accept the conclusion
Generalization fallacy:
A fallacy that occurs when an argument relies on a mistaken use of the principles behind making a generalization.
Rigid application of a generalization:
When a generalization or rule is inappropriately applied to the case at hand. The fallacy results from the belief that the generalization or rule is universal (meaning it has no exceptions).
Hasty generalization:
An argument that relies on a small sample that is unlikely to represent the population.
Composition:
There are two forms of the fallacy: (1) the mistaken transfer of an attribute of the individual parts of an object to the object as a whole and (2) the mistaken transfer of an attribute of the individual members of a class to the class itself.