,Solutions Manual
Patrick J. Hurley, A Concise Introduction to Logic, 14e, 2024,
9780357798683; Chapter 1: Basic Concepts
TABLE OF CONTENTS
Exercise Answers ....................................................................................................................................2
Exercise 1.1 ..........................................................................................................................................2
Exercise 1.2 ..........................................................................................................................................8
Exercise 1.3 .......................................................................................................................................13
Exercise 1.4 .......................................................................................................................................16
Exercise 1.5 .......................................................................................................................................19
Exercise 1.6 .......................................................................................................................................22
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posted to a publicly accessible website, in whole or in part.
,EXERCISE ANSWERS
EXERCISE 1.1
Part I
1. P: Carbon monoxide molecules happen to be just the right size and shape, and
happen to have just the right chemical properties, to fit neatly into cavities
within hemoglobin molecules in blood that are normally reserved for oxygen
molecules.
C: Carbon monoxide diminishes the oxygen-carrying capacity of blood.
2. P: The good, according to Plato, is that which furthers a person's real interests.
C: In any given case when the good is known, men will seek it.
3. P: The denial or perversion of justice by the sentences of courts, as well as in any
other manner, is with reason classed among the just causes of war.
C: The federal judiciary ought to have cognizance of all causes in which the citizens
of other countries are concerned.
4. P: When individuals voluntarily abandon property, they forfeit any expectation of
privacy in it that they might have had.
C: A warrantless search and seizure of abandoned property is not unreasonable
under the Fourth Amendment.
5. P1: Artists and poets look at the world and seek relationships and order.
P2: But they translate their ideas to canvas, or to marble, or into poetic images.
P3 Scientists try to find relationships between different objects and events.
P4: To express the order they find, they create hypotheses and theories.
C: The great scientific theories are easily compared to great art and great
literature.
6. P1: The animal species in Australia are very different from those on the mainland.
P2: Asian placental mammals and Australian marsupial mammals have not been in
contact in the last several million years.
© 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or 2
posted to a publicly accessible website, in whole or in part.
, C: There was never a land bridge between Australia and the mainland
7. P1: We need sleep to think clearly, react quickly, and create memories.
P2: Studies show that people who are taught mentally challenging tasks do better
after a good night’s sleep.
P3: Other research suggests that sleep is needed for creative problem solving.
C: It really does matter if you get enough sleep.
8. P1: The classroom teacher is crucial to the development and academic success of the
average student.
P2: Administrators simply are ancillary to this effort.
C: Classroom teachers ought to be paid at least the equivalent of administrators at
all levels, including the superintendent.
9. P1: An agreement cannot bind unless both parties to the agreement know what
they are doing and freely choose to do it.
C: The seller who intends to enter a contract with a customer has a duty to
disclose exactly what the customer is buying and what the terms of the sale are.
10. P1: Punishment, when speedy and specific, may suppress undesirable behavior.
P2: Punishment cannot teach or encourage desirable alternatives.
C: It is crucial to use positive techniques to model and reinforce appropriate
behavior that the person can use in place of the unacceptable response that has
to be suppressed.
11. P1: High profits are the signal that consumers want more of the output of the
industry.
P2: High profits provide the incentive for firms to expand output and for more firms
to enter the industry in the long run.
P3: For a firm of above average efficiency, profits represent the reward for greater
efficiency.
C: Profit serves a very crucial function in a free enterprise economy, such as our
own.
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posted to a publicly accessible website, in whole or in part.