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|Home Work Assignment 16|
|Phil 106 – Critical Thinking||Name________________________________|
|Instructor: Ray Darr||Date_________________________________|
Place the letter that corresponds to the correct word or phrase in the space provided to the left of the question. The answers can be found in chapter 8 and chapters 9-11.
_____1. A strong inductive argument based on true or at least defensible premises is (a) sound (b) cogent (c) valid (d) conclusive.
_____2. A(n) (a) sound (b) cogent (c) valid (d) conclusive deductive argument is both valid and based on at least true or defensible premises.
_____3. If a deductive argument is either invalid or is based on false or dubious premises then that deductive argument is said to be (a) unsound (b) non-cogent (c) invalid (d) inconclusive.
Answer the following questions by placing either a “T” or “F” in the space provided to the left of the question.
_____4. An informal fallacy is an inference whose unreliability is due to something other than its formal structure.
_____5. An ambiguous claim or expression is one that can be understood in more than one way.
_____6. Evidence is information that is relevant to an inference.
_____7. An inductive inference is one in which the premises leave no room for doubt.
_____8.One of the most common pitfalls to inductive reasoning is the overestimation of the strength of an inductive inference.
_____9. One of the most powerful tools that may be employed for evaluating both deductive and inductive arguments is consistency.
_____10. Reductio ad absurdum (“to reduce to absurdity”) is an effective general strategy used when we don’t know for certain if a proposition is true or not. It is a disproof of a proposition by showing that it leads to absurd or untenable conclusions.