Chapter 7 Flashcards
Insubstantial criticism
may appear to be significant but actually fails to identify a real flaw in the argument. Ex: “Maybe that’s not true”.
Argument stoppers
have the effect of cutting off rational discussion. Ex: “Who’s to say that that’s true?” or “That’s just a matter of opinion”.
Competing arguments
when one argument has a statement as its conclusion, C and another argument has the denial of that statement as its conclusion, not-C.
Specific factual claim
typically asserts that some specific object has some (possibly complex) property. Ex: x is an A.
Counter-example
an example that counters the claim made in a generalization.
Compound sentences
formed by combining two or more simpler sentences.
Inclusive interpretation
P or Q or both.
Exclusive interpretation
P or Q but not both.
Sufficient condition
When P is true, Q must also be true.
Could P be present, without Q? Yes, Q is sufficient for P.
Necessary condition
When P is false, Q must also be false.
Could Q be present without P? P is necessary for Q.
Ambiguous
words with more than one meaning.
Semantic ambiguity
when a sentence contains a word that is ambiguous & has different meanings depending on how that word is used.
Syntactic ambiguity
words can be combined in different ways to form sentences with different meanings.
Vague
a word or phrase that has no precise cut-off point between when it applies and when it doesn’t.
Incomplete sentences
in these sentences an important element of the sentence goes unstated.
Implicit relativity
make comparisons or describe relations between one thing and some unspecified comparison group or reference class.
Steps of Argument Analysis
- ) Decide if there’s an argument.
- ) Reconstruct the argument.
- ) Fine-tune the reconstruction.
- ) Evaluate the argument.
- ) Evaluate your evaluation.