Classical Square of Opposition

Which of the following is contrary to the proposition- All squares are rectangles?

Which of the following proposition is Contrary to the proposition-'All philosophers are thinkers'?

Which of the following statement(s) is/are correct?

$1$. Two propositions are contradictory if one is the negation of the other.

$2$. Universal affirmative and particular negative propositions have the relation of contradiction.

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In which of the following propositions 'Conversion' takes place through Limitation?

Which of the following proposition is the valid 'Conversion' of the proposition 'All S is P'?

Which of the following proposition is 'Contraposition' of the proposition 'All S is P'?

Which of the following proposition is the 'Obversion' of the proposition 'All S is P'?

Which of the following proposition(s) shall be true if a Universal Negative Proposition is true?

$1$. Universal Affirmative.

$2$. Particular Negative.

$3$. Particular Affirmative.

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Which of the following proposition(s) will be true if the Universal Affirmative Proposition is true?

$1$. Particular Affirmative.

$2$. Universal Affirmative.

$3$. Particular Negative.

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Which of the following statement(s) is/are correct?

$1$. In Subalternation two propositions vary in terms of quality.

$2$. The particular proposition is Subalternation is called 'Superaltern'.

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Which of the following proposition is Subaltern to the proposition 'No Whales are fish'?

Which of the following proposition is subaltern to the proposition 'All Spiders are eight-legged animals'?

If two propositions differ from each other in terms of quantity, then they are called_____.

Which of the following statement(s) is/are correct?

$1$. Two Sub-Contrary Propositions can be false at a given point in time.

$2$. Particular affirmative and Particular negative propositions are Sub-Contraries.

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Which of the following proposition is Sub-Contrary to the proposition 'Some diamonds are precious stones'.

Two propositions that cannot be false at a given point in time are called_____?

Which of the following statement(s) is/are correct?

$1$. Contraries proposition can not be true at a time.

$2$. Two contrary propositions differ in quality.

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Which of the following is contrary to the proposition ' All Poets are dreamers'?

If two propositions can not be true at a given point of time, they are _____. 

Which of the following is contradictory to the proposition- 'No teacher is sportsman'?