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QUESTION

# Whats the difference in these arguments are they valid, invalid, or sound?

Whats the difference in these arguments are they valid, invalid, or sound?

1.       (1) All dogs are mammals.

(2) All mammals are things with hair.

Therefore,

(3) All dogs are things with hair.

B Invaild

2.       (1) If that is a car, then I am a donkey.

(2) I am a donkey.

Therefore,

(3) That is a car.

Ans-D

3.       (1) All children are humans.

(2) All humans are mammals.

Therefore,

(3) All children are mammals.

Ans-B

4.       (1) All women are humans.

(2) All men are under eighteen years of age.

Therefore,

(3) All women are under eighteen years of age.

Ans- Other form

5.       (1) If you throw a match on that gas, then it will burn.

(2) You will throw a match on that gas.

Therefore,

(3) It will burn.

Ans- C

6.       (1) All houses are made of wood.

(2) All houses are made of stone.

Therefore,

Ans- A

7.       (1) If he gets in trouble, he will call his Mother.

(2) He will not get in trouble.

Therefore,

(3) He will not call his mother.

Ans-Other form

8.       (1) Some computers are PCs.

(2) All PCs are not Macintosh's.

Therefore,

(3) Some computers are not Macintosh's.

Ans-Other form

9.       (1) She is either at the grocery store or at the mall.

(2) She is not at the mall.

Therefore,

(3) She is at the grocery store.

Ans-Other form

10.     (1) All cows are pigs.

(2) All pigs are ducks.

Therefore,

(3) All cows are ducks.

Ans- B

11.      (1) George is a human.

(2) All humans are mammals.

Therefore,

(3) George is a mammal.

Ans-Other form

12.      (1) If you jump from the Empire State Building, you will die.

(2) You will jump from the Empire State Building.

Therefore,

(3) You will die.

Ans-C

13.      (1) If you are human, you will die.

(2) You will die.

Therefore,

(3) You are human.

Ans-D

14.      (1) All pigs are things that have wings.

(2) All pigs are things that love country music.

Therefore,

(3) All things that have wings are things that love country music.

Ans-A

15.      (1) Cell phones have replaced many cameras.

(2) Cameras all use film.

Therefore,

(3) Cell phones all use film.

Ans-Other form