Fallacies Flashcards
Non sequitur
“doesn’t follow”, invalid arguments
Post hoc, ergo propter hoc
after this, therefore because of this. Correlation ≠ Causation
Petitio Principii
Circular argument
Is to ought
Mistaking description for advocacy; changing is or does to ought, should or can.
Rights to Ought
Argument that something ought to be the case, because it is a human or constitutional right
Poisoning the Wells
An argument which precludes the possibility of being argued against
The Straw Man
A Misrepresentation - often a simplification - of the opposing case, in order to attack it
The Hollow Man
Fabrication of an argument you have never heard, by someone or people you don’t know
Moving the goalposts
Occurs when previously agreed standard is arbitrarily, and innocuously, redefined to meet the requirements of the present argument
Equivocation
Lexical ambiguity
Amphipoly
syntactical ambiguity
Solecism
grammatical mistake; nonstandard usage of a word
Complex question
Question containing more than one question
Red Herring
Distraction, diversion, change of subject
Hasty Generalisation
Reaching an inductive conclusion from insufficient evidence
Subjectivist Fallacy
What is true for one person is not true for another, especially against empirical evidence
Faulty analogy
Use of an analogy in argument, when the distance between the original subject and the analogue is too great to admit of reason
Slippery Slope
Reaching an absurd conclusion via small increments. Arguing based on possibility more than probability.
Ad absurdum
Taking an argument to asburd lengths. Excessive use of hypothesis.
Ad passiones
Any appeal to the passions, or emotions, instead of reason
Ad hominem
Argument or appeal addressed to the individual; personal attack
Tu quoque
Opponent’s argument is dismissed, because the opponent does not practise it himself
Ad populum
Appeal to “herd mentality”. Something is true because the people say so
Ad ignorantium
Proposition is true because it has not been proven false, or false because it has not been proven true