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WorksheetsArguments in Action 2
Total questions: 16
Worksheet time: 19mins
Name
Class
Date
1.
All toasters are items made of gold.
All items made of gold are time-travel devices.
Therefore, all toasters are time-travel devices.
All items made of gold are time-travel devices.
Therefore, all toasters are time-travel devices.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
2.
No prisoners are eligible voters.
Some professional athletes are prisoners.
Therefore, some professional athletes are not eligible voters.
Some professional athletes are prisoners.
Therefore, some professional athletes are not eligible voters.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
3.
All spider monkeys are elephants.
No elephants are animals.
Therefore, no spider monkeys are animals.
No elephants are animals.
Therefore, no spider monkeys are animals.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
4.
All basketballs are round.
The Earth is round.
Therefore, the Earth is a basketball.
The Earth is round.
Therefore, the Earth is a basketball.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
5.
All ceilings are attached to walls.
All doors are attached to walls.
Therefore, all doors are ceilings.
All doors are attached to walls.
Therefore, all doors are ceilings.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
6.
All dogs are green.
Anything that is green is a fish.
Therefore, all dogs are fish.
Anything that is green is a fish.
Therefore, all dogs are fish.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
7.
Some cats are reptiles.
Bugs Bunny is a cat.
So Bugs Bunny is a reptile.
Bugs Bunny is a cat.
So Bugs Bunny is a reptile.
a)
Valid but Unsound
b)
Sound
c)
Invalid with false premises
d)
Invalid with true premises
8.
If Socrates was a philosopher, then he wasn't a historian.
Socrates wasn't a historian.
So Socrates was a philosopher.
Socrates wasn't a historian.
So Socrates was a philosopher.
a)
Valid but Unsound
b)
Sound
c)
Invalid
d)
Not even an argument!
9.
If Socrates was a horse, then Socrates was warm-blooded.
Socrates was warm-blooded.
So Socrates was a horse.
Socrates was warm-blooded.
So Socrates was a horse.
a)
Valid but Unsound
b)
Sound
c)
Invalid with true premises
d)
Invalid with false premises
10.
If the moon is made of green cheese, then cows jump over it.
The moon is made of green cheese.
Therefore, cows jump over the moon.
The moon is made of green cheese.
Therefore, cows jump over the moon.
a)
Valid but Unsound
b)
Sound
c)
Invalid with true premises
d)
Invalid with false premises
11.
If Gregor is a horse, then Gregor is mortal. Gregor is a horse. So, Socrates is mortal.
a)
Valid but Unsound
b)
Sound
c)
Invalid
12.
If Mr Roffe is a man, then he's a mammal. Mr Roffe is not a mammal. So Mr Roffe is not a man.
a)
Valid but Unsound
b)
Sound
c)
Invalid
d)
Not even an argument!!
13.
If there is precipitaion coming today, it will rain or snow.
It is not going to snow today (true).
Today will be sunny.
It is not going to snow today (true).
Today will be sunny.
a)
invalid with untrue premises
b)
Sound
c)
Valid but unsound
d)
invalid with true premises
14.
Cassandra owns a Mercedes-Benz.
Only people who are rich own Mercedes-Benz automobiles.
Therefore Cassandra must be rich.
Only people who are rich own Mercedes-Benz automobiles.
Therefore Cassandra must be rich.
a)
invalid with untrue premises
b)
Sound
c)
Valid but unsound
d)
invalid with true premises
15.
All good teachers come to class on time.
Professor Simpson always comes to class on time. Professor Simpson must be a good teacher.
(take your time)
Professor Simpson always comes to class on time. Professor Simpson must be a good teacher.
(take your time)
a)
invalid
b)
Sound
c)
Valid but unsound
d)
not even an argument!!
16.
Everytime there is someone in the front yard, Spot barks.
Spot is barking,
so someone must be in the front yard.
Spot is barking,
so someone must be in the front yard.
a)
invalid
b)
Sound
c)
Valid but unsound
d)
not even an argument!!
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