Official© Solutions Manual to Accompany The Power of Logic,Snyder

CHAPTER 1


Basic Concepts


The starred items are also contained in the Answer Key in the back of The Power of
Logic.




Exercise 1.1

Part A: Recognizing Statements

*1. Statement

2. Sentence only

3. Sentence only

*4. Statement

5. Statement

6. Statement

*7. Neither

8. Statement

9. Neither

*10. Statement

11. Statement

12. Sentence only

*13. Statement

14. Sentence only

15. Sentence only

,*16. Sentence only

17. Statement

18. Neither

*19. Statement

20. Neither

21. Neither

22. Neither

23. Neither

24. Sentence only

25. Sentence only

26. Neither

27. Sentence only

28. Statement

29. Neither

30. Statement

Part B: True or False?

*1. False

2. True

3. False

*4. True

5. False

6. False

*7. False

8. True

, 9. True

*10. False

11. False

12. True

*13. True

14. False

15. True

*16. False

17. False

18. False

*19. True

20. True

21. False

*22. False

23. False

24. True

*25. False

26. False

27. True

*28. True

29. True

30. False

31. False

32. False

33. True

, 34. False

35. False

Part C: Valid or Invalid?

*1. Valid

2. Invalid

3. Invalid

*4. Valid

5. Valid

6. Valid

*7. Invalid

8. Valid

9. Invalid

*10. Invalid

11. Invalid

12. Valid

*13. Invalid

14. Valid

15. Valid

Part D: Soundness

*1. Sound

2. Sound

3. Unsound, because invalid; also, conclusion obviously false

*4. Unsound; the argument is invalid.

5. Sound