Question 10. 10. “A mammals is any creatures that breathe air, have hair, and br

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Question 10.10. “A mammals is any creatures that breathe air, have hair, and breast-feed its young. Dolphins breathe air, have hair, and breast-feed their young. Therefore, dolphins are mammals.” This argument is __________. (Points : 1)

       a mathematical argument
       an inductive argument
       an explanation
       an argument from definition

Question 11.11. How many circles must one draw to do the Venn diagram test of a syllogism? (Points : 1)

       1
       2
       3
       4

Question 12.12. What is the contrapositive of the statement “No bridges are buildings”? (Points : 1)

       No non-bridges are non-buildings.
       No bridges are non-buildings.
       All brides are not buildings.
       No non-buildings are non-bridges.
       None of these

Question 13.13. In a truth table, if P is false and Q is true then what is the truth value of “P Ú Q”? (Points : 1)

       True
       False
       Neither true nor false
       Indeterminate

Question 14.14. What is the converse of the statement “No pilots are mechanics”? (Points : 1)

       No mechanics are pilots.
       No mechanics are not pilots.
       Some mechanics are pilots.
       All pilots are mechanics.
       None of these

Question 15.15. What is the contrapositive of the statement “All sunsets are beautiful things”? (Points : 1)

       All non-beautiful things are non-sunsets.
       All non-sunsets are not non-beautiful
       All beautiful things are non-sunsets.
       No beautiful things are sunsets.
       None of these

Question 16.16. How should one create a Venn diagram of the statement “No As are Bs”? (Points : 1)

       Shade the area inside the B circle but outside the A circle.
       Shade the area in the overlap of the A and B circles.
       Shade the area inside of the A circle but outside of the B circle.
       Put an “x” in the overlap between the A and B circles.

Question 17.17. Select the proper symbolization of the following statement, where B is “I will buy a new computer” and C is “my computer crashes.”

I will buy a new computer only if my current computer crashes. (Points : 1)

       B & C
       B Ú C
       B ® C
       C ® B
       None of these

Question 18.18. “Some computers are Macs” is which type of statement? (Points : 1)

       Universal affirmative
       Universal negative
       Particular affirmative
       Particular negative
       None of these

Question 19.19. Select the proper symbolization of the following statement, where A is “humans are primates,”
B is “bonobos are primates,” and C is “they are related.”

If humans are primates, and bonobos are as well, then they are related in some way. (Points : 1)

       (A & B) C
       (A B) C
       A & B C
       ABC
       None of these

Question 20.20. Negation is __________. (Points : 1)

       an “and” statement
       an “if–then” statement
       an “or” statement
       an “if and only if” statement
       None of these

Question 10.10. “A mammals is any creatures that breathe air, have hair, and breast-feed its young. Dolphins breathe air, have hair, and breast-feed their young. Therefore, dolphins are mammals.” This argument is __________. (Points : 1)

       a mathematical argument
       an inductive argument
       an explanation
       an argument from definition

Explanation / Answer

10)  an explanation

11) 3

12)  All brides are not buildings.

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