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Square of Opposition

Total questions: 25

Worksheet time: 5mins

Name
Class
Date
1.

What type of categorical proposition is this:


"All students are intelligent."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

2.

What type of categorical proposition is this:


"Some students are intelligent."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

3.

What type of categorical proposition is this:


"Not all students are intelligent."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

4.

What type of categorical proposition is this:


"Some students are not intelligent."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

5.

What type of categorical proposition is this:


"Every man is strong."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

6.

What type of categorical proposition is this:


"Some men are strong."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

7.

What type of categorical proposition is this:


"Some men are not strong."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

8.

What type of categorical proposition is this:


"All teachers are not happy."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

9.

What type of categorical proposition is this:


"Some people are not grateful."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

10.

What type of categorical proposition is this:


"Every pupil is good."

a)

Universal Affirmative (A)

b)

Universal Negative (E)

c)

Particular Affirmative (I)

d)

Particular Negative (O)

11.

What is the relationship of the following propositions?


1. "Some men are loyal."

2. "All men are loyal."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

12.

What is the relationship of the following propositions?


1. "All flowers are beautiful."

2. "All flowers are not beautiful."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

13.

What is the relationship of the following propositions?


1. "Some politicians are not good."

2. "Some politicians are good."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

14.

What is the relationship of the following propositions?


1. "Some politicians are good."

2. "All politicians are good."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

15.

What is the relationship of the following propositions?


1. "Some politicians are good."

2. "All politicians are not good."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

16.

What is the relationship of the following propositions?


1. "All mangoes are sweet."

2. "No mango is sweet."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

17.

What is the relationship of the following propositions?


1. "Some cars are nice."

2. "All cars are not nice."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

18.

What is the relationship of the following propositions?


1. "Some cars are nice."

2. "Some cars are not nice."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

19.

What is the relationship of the following propositions?


1. "All fruits are delicious."

2. "Some fruits are delicious."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

20.

What is the relationship of the following propositions?


1. "All fruits are not delicious."

2. "Some fruits are delicious."

a)

Contradictory

b)

Contrary

c)

Sub-contrary

d)

Subaltern

21.

If we assume that the proposition "All boys are bad" is true, then the proposition "All boys are not bad" is __________.

a)

True

b)

False

c)

Doubtful

22.

If we assume that the proposition "All boys are not bad" is true, then the proposition "All boys are bad" is __________.

a)

True

b)

False

c)

Doubtful

23.

If we assume that the proposition "Some boys are not bad" is false, then the proposition "All boys are bad" is __________.

a)

True

b)

False

c)

Doubtful

24.

If it false that "Some plants are edible", then the proposition "All plants are edible" is ________.

a)

True

b)

False

c)

Doubtful

25.

If it false that "All plants are edible", then the proposition "All plants are not edible" is ________.

a)

True

b)

False

c)

Doubtful