Bissoy.com
Doctors Medicines MCQs Q&A

If 'some women are writers' is true, which of the following codes are CORRECT A. 'All women are writers' false B. 'All women are writers' is true C. 'No women are writers' is false D. 'Some women are not writers' is undetermined Choose the correct answer from the options given below:

If 'some women are writers' is true, which of the following codes are CORRECT A. 'All women are writers' false B. 'All women are writers' is true C. 'No women are writers' is false D. 'Some women are not writers' is undetermined Choose the correct answer from the options given below: Correct Answer C and D only

The square of opposition is a diagram used in categorical logic to depict the logical relationship that exists between particular propositions based on their form.

Key Points 

Diagram of Aristotelian Square of Opposition. 

The four corners of this diagram represent the four basic forms of propositions. 

 Propositions From   Title  Example
A All S is P Universal affirmatives All women are writers. 
E No S are P Universal negative No women are writers.
I Some S are P Particular affirmatives Some women are writers. 
O Some S are not P Particular Negative Some women are not writers.

Now applying the rule of the Square of Opposition.

Types of Square of Opposition  Rules
Contradictory

A and O, E, and I propositions are contradictory. 
If One is True the other will be false definitely.

If One is False the other will be True definitely. 

For Example, Some women are writers(I) is True then, No women are writers (E) must be False 
Contrary

A and E propositions are contrary. 

It's always Between Universal. 

Both statements cannot be true at the same time but both can be False. 

If One is True the other will be False definitely. 

If One is False the other will be  Doubtful. 
Sub-contrary

I and O propositions are subcontrary.

It is always between Particulars. 

It is the opposite of the Contrary. 

Both Statements can't be False at the same time but both can be True. 

If One is False the other will be true definitely. 

If One is True the other will be Doubtful

For Example, Some women are writers Is True then, Some women are not writers is Doubtful. 
Subalternation

A and I, E and O propositions are Subalternation. ​

Between Universal and Particulars.

If Universal is True Particular will be False definitely. 

If Universal is False Particular will be True Doubtful. 

If Particular is False Universal will be False definitely. 

If Particular is True Universal will be Doubtful.  

Thus, "No women are writers" is false, and "Some women are not writers" is undetermined are correct. 

Related Questions

If 'All men are mortal' is given as True, then which of the following options can be validly inferred from it? A. 'No men is mortal' is False B. 'Some men are mortal' is True C. 'Some men are not mortal' is True D. 'Some men are not mortal' is False E. 'Some men are mortal' is False Choose the correct answer from the options given below :
In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All women are hardworking. II. All intelligent are advocate. III. Some intelligent are women. Conclusions: I. Some advocates are women. II. Some hardworking are women. III. Some women are advocate. IV. Some hardworking are intelligent.
Statements and conclusions derived from them are given below. Select the correct option about conclusions. Statements: a. All carpenters are doctors. b. All carpenters are writers. Conclusions: I. All writers are doctors. II. Some doctors are writers. III. Generally doctors are writers. IV. All doctors are carpenters. 
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).  Assertion (A): Tax should not be charged on dividend income from the shareholders  Reason (R): Some economists are of the opinion that when tax has already been paid on the profit of the company and balance is distributed as dividend to the owners, tax need not be levied on them  In the light of the above two statements, choose the correct answer from the options given below  1. Both A) and R) true and R) is the correct explanation of A) 2. Both A) and R) true but R) is NOT the correct explanation of A) 3. A) is true but R) is false  4. A) is false but R) is true
If two standard form categorical propositions with the same subject and predicate are related in such a manner that if one is undetermined the other must be undetermined, what is their relation?
A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given fouralternatives. Just as space permeates everything in the universe, love permeates every part, every aspect of creation. If there is one answer to the question, “How and why doesthis world exist?” the answer, in one word, is Love. Rather, the answer is Pure Love, since the word love has lost its meaning. Your very existence is an expression of pure unconditional love of the Source (you may call it Consciousness, Creator, God, Divine Self). This is the truth of your being.True love transcends both love and hatred. It is unconditional, unquestioning, boundless, unchanging love. It is overflowing love of the Source for the Source throughall of creation. True love is way beyond the personalized love that two or more individuals assert on one another. Personalized love, though apparently selfless, is rooted in desiresand conditional satisfaction. We have been brought up in a society that judges love based on conditions. We have been made to believe that we can receive love only when we fit into peoplesexpectations. If we are not good enough, we will be deprived of love. These beliefs have influenced the collective psyche of families, groups, communities, and societies since generations to such an extent that love has been reduced tofear of denial. We need to shift from the paradigm of false conditional love to the essence of pure unconditional love . The experience of true love comes with surrender of the false I, in letting go of the feeling of separateness. Without this sacrifice, it is not possible to attain divinelove. When this separate I is discarded, you embrace everything in oneness and catch a glimpse of pure love. True love can be experienced only through giving, not by demanding. People who exist in your life are not here to love you. They are here to remind you that you arethe Source of Love. By knowing that you are the Source of love, you can love yourself, instead of waiting to receive love from the world. Ask yourself, “Why do I need an agent to love myself?” Waiting for the world to love you, is like hiring an agent to love yourself! It is time for you to honor yourself as the Source of love. You have undertaken this human journey to realize and express the boundless love that you truly are. According to the passage, which of the following statement is not TRUE?
If 'Some members are not voters' is false in a square of the opposition of proposition, which of the following code can be correctly picked A. 'All members are voters' is false B. 'Some members are voters' is true C. 'All members are voters' is true D. 'No members are voters' is true Choose the correct answer from the options given below:
A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given fouralternatives. Just as space permeates everything in the universe, love permeates every part, every aspect of creation. If there is one answer to the question, “How and why doesthis world exist?” the answer, in one word, is Love. Rather, the answer is Pure Love, since the word love has lost its meaning. Your very existence is an expression of pure unconditional love of the Source (you may call it Consciousness, Creator, God, Divine Self). This is the truth of your being.True love transcends both love and hatred. It is unconditional, unquestioning, boundless, unchanging love. It is overflowing love of the Source for the Source throughall of creation. True love is way beyond the personalized love that two or more individuals assert on one another. Personalized love, though apparently selfless, is rooted in desiresand conditional satisfaction. We have been brought up in a society that judges love based on conditions. We have been made to believe that we can receive love only when we fit into peoplesexpectations. If we are not good enough, we will be deprived of love. These beliefs have influenced the collective psyche of families, groups, communities, and societies since generations to such an extent that love has been reduced tofear of denial. We need to shift from the paradigm of false conditional love to the essence of pure unconditional love . The experience of true love comes with surrender of the false I, in letting go of the feeling of separateness. Without this sacrifice, it is not possible to attain divinelove. When this separate I is discarded, you embrace everything in oneness and catch a glimpse of pure love. True love can be experienced only through giving, not by demanding. People who exist in your life are not here to love you. They are here to remind you that you arethe Source of Love. By knowing that you are the Source of love, you can love yourself, instead of waiting to receive love from the world. Ask yourself, “Why do I need an agent to love myself?” Waiting for the world to love you, is like hiring an agent to love yourself! It is time for you to honor yourself as the Source of love. You have undertaken this human journey to realize and express the boundless love that you truly are. Which of the following statement(s) is/are TRUE about pure love?
Statements : Some questions are answers. Some answers are writers. All the writers are poets.

Conclusions :
I. Some writers are answers.
II. Some poets are questions.
III. All the questions are poets.
IV. Some poets are answers.
Read the given statements and conclusions carefully. Assuming that the information given in the statements in true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: 1. Some dancers are writers. 2. All writers are students. Conclusions: I. Some students are dancers. II. Some students are writers. III. No students is a dancer.