Unit 3 Fallacies Flashcards
Affirming the Consequent
P1: If P then Q
P2: Q
Therefore, P
P1: If P then Q
P2: Q
Therefore, P
Affirming the Consequent
Denying the Antecedent
P1: If P then Q
P2: Not P
Therefore, not Q
P1: If P then Q
P2: Not P
Therefore, not Q
Denying the Antecedent
Slippery slope
A small occurrence will lead to a chain reaction until something far beyond logical.
A small occurrence will lead to a chain reaction until something far beyond logical.
Slippery slope
Slippery slope
A small occurrence will lead to a chain reaction until something far beyond logical.
Loaded question
Rhetorical question that has a controversial assumption. Thus, making the opposing person not being able to answer.
A small occurrence will lead to a chain reaction until something far beyond logical.
Slippery slope
Rhetorical question that has a controversial assumption. Thus, making the opposing person not being able to answer.
Loaded question
Post hoc ergo propter hoc (false cause)
Since B occurred after A, A must’ve caused B.
Since B occurred after A, A must’ve caused B.
Post hoc ergo propter hoc (false cause)
Strawman
Misconstruing someone’s argument to make it easier to attack.
Misconstruing someone’s argument to make it easier to attack.
Strawman
Black and white fallacy (false dilemma)
Choose either black or white when grey is an available alternative. You’re only given a choice between two options.
Choose either black or white when grey is an available alternative. You’re only given a choice between two options.
Black and white fallacy (false dilemma)
Ad hominem (abusive and circumstantial)
Attacking the person instead of the argument.
Attacking the person instead of the argument.
Ad hominem (abusive and circumstantial)
Tu quoque (Illicit appeal to hypocrisy)
Calling the person a hypocrite for doing something similar to the argument they are making.
E.g. What do you mean that I should drive with my seat belt on? I have seen you drive over the speed limit often enough.
Calling the person a hypocrite for doing something similar to the argument they are making.
E.g. What do you mean that I should drive with my seat belt on? I have seen you drive over the speed limit often enough.
Tu quoque (Illicit appeal to hypocrisy)
Faulty analogy
An assumption that two things have the same characteristic because they share at least one other similar characteristic.
E.g. Gamblers and stock traders both risk their money for profit, so being a stock trader is the same as being a gambler.
An assumption that two things have the same characteristic because they share at least one other similar characteristic.
E.g. Gamblers and stock traders both risk their money for profit, so being a stock trader is the same as being a gambler.
Faulty analogy
Hasty generalisation
From one occurrence, they apply that information to the larger population/group.
E.g. I had a terrible time with my former wife. I am never going to marry again because I have learned that no women are easy to live with.
Ad populum (illicit appeal to popular opinion/bandwagon fallacy)
Appealing to public opinion or jumping on the bandwagon. Thus, believing popular opinion is always right.
E.g. These days everyone (except you) has a car and knows how to drive; So, you too should have a car and know how to drive.