wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Valid and Invalid for S2 Logic

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Read this argument:

1 All things with sharp teeth are scary.

2 That cat has sharp teeth.

____________________

C. That cat is scary.

a)

This argument is valid.

b)

This argument is invalid.

2.

Read this argument:

1 It snows sometimes.

2 There as a ninja peacock in Kung Fu Panda 2.

____________________

C. The queen likes bacon.

a)

This argument is valid.

b)

This argument is invalid.

3.

Read this argument:

1 All people respire.

2 I am a person.

____________________

C. I respire.

a)

This argument is valid.

b)

This argument is invalid.

4.

Read this argument:

1 I am an alien.

2 All aliens live on Neptune.

____________________

C. I live on Neptune.

a)

This argument is valid.

b)

This argument is invalid.

5.

Read this argument:

1 All spiders have eight legs.

2 Tom is a fish.

____________________

C. Tom has eight legs.

a)

This argument is valid.

b)

This argument is invalid.

6.

Read this argument:

1 Dinosaurs live in England.

2 I live in England.

____________________

C. I live in the same country as dinosaurs.

a)

This argument is valid.

b)

This argument is invalid.

7.

Read this argument:

1 Dogs have eight legs.

2 Jack is a dog.

____________________

C. Jack has eight legs.

a)

This argument is valid.

b)

This argument is invalid.

8.

Read this argument:

1 France is in South America.

2 I am in France.

____________________

C. I am in South America.

a)

This argument is valid.

b)

This argument is invalid.

9.

Read this argument:

1 All dogs are cats.

2 Jack is a dog.

____________________

C. Jack is a cat.

a)

This argument is valid.

b)

This argument is invalid.

10.

Read this argument:

1 All cats are black.

2 Jack is a black.

____________________

C. Jack is a cat.

a)

This argument is valid.

b)

This argument is invalid.

11.

Read this argument:

1 I am a chair.

2 I am red.

____________________

C. All chairs are red.

a)

This argument is valid.

b)

This argument is invalid.

12.

Read this argument:

1 I am a chair.

2 All chairs are red.

____________________

C. I am red.

a)

This argument is valid.

b)

This argument is invalid.

13.

Read this argument:

1 I am a person.

2 All people can think.

____________________

C. I can think.

a)

This argument is valid.

b)

This argument is invalid.

14.

Read this argument:

1 I like potatoes.

2 I like chicken.

____________________

C. I like cheese.

a)

This argument is valid.

b)

This argument is invalid.

15.

Read this argument:

1 All dogs are black.

2 I am a dog.

____________________

C. I am black.

a)

This argument is valid.

b)

This argument is invalid.