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
a→b→c
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