Search Results for: papers/490937

Affirming the Consequent

Go Jan 01, 1970 Any argument of the following form is invalid: (1) If A then B (2) B Therefore, A

Irrelevant Conclusion

Go Jan 01, 1970 An argument which purports to prove one thing instead proves a different conclusion.

Go Jan 01, 1970 Each of these fallacies is characterized by the illegitimate use of a logical operator in order to distract the reader from the apparent falsity of a certain proposition. The following fallacies are fallacies of distraction:

Limited Scope

Go Jan 01, 1970 The theory doesn't explain anything other than the phenomenon it explains.

Biconditional (if-and-only-if)

Go Jan 01, 1970 The proposition P if and only if Q is true if and only if both P and Q are true, or if both P and Q are false. It is false only when one of them is true and the other false.

Existential Fallacy

Go Jan 01, 1970 A particular conclusion is drawn from universal premises.

Untestability

Go Jan 01, 1970 The theory which explains cannot be tested.

Negation (not)

Go Jan 01, 1970 The proposition Not P is true if and only if P is false. It is false only if P is true.

Drawing Affirmative Conclusion

Go Jan 01, 1970 The conclusion of a standard form categorical syllogism is affirmative, but at least one of the premises is negative.

Exclusive Premises

Go Jan 01, 1970 A standard form categorical syllogism has two negative premises (a negative premise is any premise of the form 'No S are P' or 'Some S is not P').

Consider all. Test All. Hold on to the good.