3.1 Quiz Critical Thinking By Example


1. "X is necessary for Y" means the same thing as

a) X is required for Y.
b) X is enough for Y.
2. According the sentence, "If you love cheese, then you love milk", loving milk is a ____________for loving cheese.

a) sufficient
b) necessary
c) necessary and sufficient
d) neither necessary nor sufficient
3. The contrapositive of "If you love cheese, then you love milk", is

a) If you love milk, then you love cheese.
b) If you don't love milk, then you don't love cheese.
c) If you don't love cheese, then you don't love milk.
4. ccording to the sentence "You love cheese only if you love milk", loving cheese is a ______condition for loving milk.

a) necessary
b) sufficient
c) necessary and sufficient
d) neither necessary nor sufficient
5. According to the sentence "You love cheese only if you love milk", loving milk is a __________condition for loving cheese.

a) necessary
b) sufficient
c) necessary and sufficient
d) neither necessary nor sufficient
6. According to the sentence, "Unless it snows the game will go on" the game going on is a ______________ condition for it not snowing.

a) necessary
b) sufficient
c) necessary and sufficient
d) neither necessary nor sufficient
7. According to the sentence, "Unless it snows the game will go on" the game going on is a _______ condition for it snowing.

a) necessary
b) sufficient
c) necessary and sufficient
d) neither necessary nor sufficient
8. The sentence, "Unless it snows the game will go on" is equivalent to which of the following?

a) If it does not snow, then the game will go on.
b) If the game goes on, then there is no snow.
c) If the game goes on, then it snows.
d) If the game goes on, then it does not snow.
9. According to the sentence, "I drink milk, when I eat cheese", eating cheese is a ________condition for drinking milk.

a) necessary
b) sufficient
c) necessary and sufficient
d) neither necessary nor sufficient
10. According to the sentence, "I drink milk, when I eat cheese", not drinking milk is a ________condition for not eating cheese.

a) necessary
b) sufficient
c) neither necessary nor sufficient
d) necessary and sufficient
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