The soundness of an argument is determined by
A) its having a true conclusion. B) its having true premises and a true conclusion. C) its having a valid argument form and true premises.
C
15.An argument is unsound if and only if A) it is valid. B) it is invalid and/or it has at least one false premise. C) it has true premises and a true conclusion.
B
16.If an argument is unsound, then the logical thinker who recognizes this must A) take its conclusion to be false. B) take its conclusion to be unsupported by the argument. C) take its conclusion to be supported by the argument.
B
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Which of the following is a substitution instance of the argument form "All A are B; No B are C; So, no A are C"?
A. All fish are dogs; No dogs are mammals; So, no fish are mammals. B. All mammals are dogs; No mammals are fish; So, no fish are dogs. C. All dogs are fish; No dogs are mammals; So, no fish are mammals. D. All dogs are mammals; No fish are mammals; So, no dogs are fish.
"Since Omsk is in Siberia, it typically has extremely cold winters" has
A) only a premise indicator? B) only a conclusion indicator? C) neither premise nor conclusion indicators? D) both a premise and a conclusion indicator
Which of Mill's methods is involved in the following? Experiments performed with driving simulators show that the more alcohol a person drinks the greater the number of driving errors he or she makes
a. Method of Difference b. Method of Concomitant Variation c. Method of Agreement d. Joint Method
The Mesopotamian agricultural goddess who descended into the underworld of Ereshkigal was
a. Inanna. b. Shamash. c. Sin. d. Ishtar