Consider "M v L, (M ? I) ? (L ? I).•. I ? (M ? L)" How many rows must the truth table for determining the validity of this argument have?
A) 2 rows B) 4 rows C) 8 rows
C
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Identify the conclusion in the following argument: If abortion is murder, then it must involve the killing of a person. It follows that abortion can't be murder, since the fetus, although human, is not yet a person
a. The fetus is not yet a person. b. The fetus is human. c. Abortion is murder. d. Abortion can't be murder.
An example offered by Held, and also discussed by Card, involves
a. a father with special tutoring skills. b. a mother who abandons her family. c. two children who must make special caregiving arrangements for their aging parents. d. a police officer who must decide whether to arrest his own son. e. a doctor who must choose the recipient of scarce life-saving medical resources.
The egocentric predicament begins with the assumption that
A) ?we are, at root, selfish beings. B) ?we are destined to live always alone in the world. C) ?we know our own mind directly and beyond any doubt. D) ?we can have no knowledge of the external world.
What makes it important that the practice of critical thinking be done with "friends"?
A. Friends have your best interests at heart. B. Friends have about the same background knowledge that you have. C. Friends will let you win an argument much of the time. D. Friends will assume that you want to discuss things fairly and not just argue.