Which of the following are assertions (claims)?
A. Some chicken-pluckers are banjo-players.
B. If an earthquake occurs in Japan, a tsunami could hit California.
C. What will become of us?
D. The moon is made of green cheese.
E. Don't sit under the apple tree with any one else but me!
Which of the following are conditional statements?
A. I would have finished dinner if I had been hungrier.
B. Last night I dreamed I went to Manderley.
C. If it rains, we'll have to cancel the picnic.
D. Sometimes I think that life is pointless.
E. I'll serve only if I'm elected.
If the letter P stands for "Priscilla will go to Portland" and Q stands for "Quigley is quirky" then what expressions is/are equivalent to "Priscilla will go to Portland unless Quigley is quirky"? Check all that apply.
A. If not-Q then P.
B. If Q then P
C. If P then Q
D. P or Q.
E. If not-P then Q.
The statement: "My dog only barks when the door bell rings" indicates that:
A. The ringing of the doorbell is a sufficient cause of my dog barking.
B. The ringing of the doorbell is a necessary cause of my dog barking.
The statement: "If you build it, they will come" indicates that:
A. building it is a sufficient condition for them coming.
B. Building it is a necessary condition for them coming.