{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter_and_Answers

Chapter_and_Answers - Chapter 8 Categorical Logic Answers...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8 Categorical Logic Answers to Text Exercises Exercise 8-1 When we ask students to turn in exercises like these, we make them put parentheses or brackets around the subject and predicate terms—doing this helps students keep their answers straight, and it helps us read them. ▲1. All salamanders are lizards 2. Some lizards are not salamanders. 3. All lizards are reptiles. ▲4. All members of the suborder Ophidia are snakes. 5. All members of the suborder O. are snakes. 6. No burrowing snakes are poisonous snakes. ▲7. All alligators are reptiles. 8. All frogs are amphibians. 9. All places where there are snakes are places where there are frogs. ▲10. All places there are snakes are places there are frogs. 11. All times the frog population decreases are times the snake population decreases. 12. All people who arrived are cheerleaders. ▲13. All people who got raises are vice presidents. 14. All people who got seats are people who arrived early. ▲15. Some home movies are things that are as boring as dirt. ▲16. All people identical with Socrates are Greeks. 17. No people identical to the bank robber are people identical to Jane’s fiancé. 18. All automobiles built before 1950 are antiques. IM – 8 | 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
▲19. All examples of salt are things that preserve meat. 20. Some examples of corn are not stuff that makes good popcorn. Exercise 8-2 ▲1. No students who wrote poor exams are students who were admitted to the program. 2. No students of mine are students who are failing. 3. No people who live in the dorms are people who can own cars. (If there is something about the addressee of this claim that makes it apply to him or her but not to all others, this one should be rephrased: “No people like you who live in the dorms are people who can own cars.”) ▲4. Some first basemen are right-handed people. 5. All times Joan sings are times people make faces. 6. All tests George fails are tests George takes. ▲7. All passers are people who made at least 50 percent. 8. All people who can be members are people over fifty. (Notice the difference between this and the claim “All members are over fifty.” The latter doesn’t capture the requirement that one be over fifty to be a member.) 9. All people who catch on are people who study. (Or, the converse of the obverse may seem more natural: “No people who fail to study are people who catch on.”) ▲10. Some prior days are days like this day. 11. No roofers are millionaires. 12. No parts of Michael Jackson’s face are parts that are original equipment. ▲13. Some holidays are holidays that fall on Saturday. 14. All gun owners are outlaws. 15. All things you have to lose are your chains. ▲16. All people who pass the course are people who pass this test. Or, no people who fail this test are people who pass the course.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern