Chapter 4 - Fallacies Of Irrelevance Flashcards
Informal fallacy
An error in reasoning that does not involve the explicit use of an invalid form
Argument against the person (ad hominem)
Fallacy that involves attacking the person who advanced an argument as opposed to providing a rational critique of the argument itself
Abusive ad hominem
Fallacy that involves an attempt to discredit an argument or view by launching a direct personal attack
Circumstantial ad hominem
Fallacy that involves an attempt to discredit an argument or view by calling attention to the circumstances or situation of those who advance it
Tu quoque
Fallacy that involves an attempt to discredit an argument or view by suggesting ones opponent is hypocritical
Straw man fallacy
Occurs when the arguer attacks an misrepresentation of the opponents view
Appeal to force
Occurs when a conclusion is defended by a threat to the well-being of those who do not accept it
Appeal to the people
An attempt to persuade a person or group by appealing to the desire to be accepted or valued by others
Appeal to pity
The attempt to support a conclusion merely by invoking pity in ones audience
Appeal to ignorance
Either:
A) The claim that a statement is true because it hasn’t been proven false OR
B) The claim that a statement is false because it hasn’t been proven true
Red herring fallacy
Occurs when the premises of an argument are logically unrelated to the conclusion
Fallacy of equivocation
When multiple meanings of a word are used in a context where validity requires a single meaning of that word or phrase
Fallacy of amphiboly
When multiple meanings of a sentence are used in a context where:
A) Validity requires a single meaning AND
B) The multiple meanings of a sentence are due to sentence structure
Fallacy of composition
Either:
A) An invalid inference from the nature of the parts to the nature of the whole OR
B) An invalid inference from the attributes of the members of a group to the attributes of the group itself
Fallacy of division
Either:
A) An invalid inference from the nature of the whole to the nature of the parts OR
B) An invalid inference from the nature of the group to the nature of its members
Begging the question
When an argument assumes the point to be proved
False dilemma (false dichotomy)
When one uses a premise that unjustifiably reduces the number of alternatives to be considered
Appeal to unreliable authority
An appeal to an authority when the authority may be reasonably doubted
False cause fallacy
When one possible because of a phenomenon is assumed to be the cause although the reasons are lacking for excluding other possible causes
The complex question fallacy
Asking a question that illegitimately presupposes some conclusion alluded to in the question
Formal fallacy
An error in reasoning that involves explicit use of an invalid form
Slippery slope
When the arguer assumes that a chain reaction will occur but there is insufficient evidence that one (or more) events in the chain will cause the others
Hasty generalization
When a conclusion is reached without considering all of the variables. Usually shows a pattern