Deck 10: Propositional Relations and Syllogistic Inference in Logic

Question 1

__________ is the relation between two universal propositions having the same subject but differing in quality only.

A)Contrary opposition
B)Contradictory opposition
C)Subaltern
D)Sub- contrary.

Answer 1

Contrary opposition

Question 2

___________ is the relation between two propositions having the same subject but differing in both quality and quantity.

A)Contrary opposition
B)Contradictory opposition
C)Subalternation
D)Sub- contrary.

Answer 2

Contradictory opposition

Question 3

The relation between two particular propositions having the same subject and predicate but differing in quality is _________opposition.

A)contrary
B)Contradictory
C)subalternation
D)sub-contrary.

Answer 3

sub-contrary.

Question 4

______ opposition is the relation between two propositions having the same subject and predicate but differing in quantity only.

A)Contrary
B)Contradictory
C)Subaltern
D)Sub-contrary.

Question 5

If one of the contraries is true the truth-value of the other is

A)true
B)false
C)neither true nor false
D)both true and false.

Question 6

If one of the contraries is false the truth-value of the other is

A)true
B)false
C)doubtful
D)neither true nor false.

Question 7

If one of the contradictories is true the other must be _______.

A)true
B)false
C)doubtful
D)neither true nor false

Question 8

Contrary propositions cannot both be ________.

A)true
B)false
C)true and false
D)doubtful

Question 9

Of two sub-contraries if one is false the other is necessarily______

A)true
B)false
C)doubtful
D)neither true nor false.

Question 10

Of two sub-contraries if one is true the other is ________.

A)true
B)false
C)doubtful
D)neither true nor false.

Question 11

Between subalterns if the universal is true the particular is

A)true
B)false
C)doubtful
D)both true and false.

Question 12

If the particular proposition of a subaltern relation is false its corresponding universal proposition will be_______.

A)true
B)false
C)both true and false
D)doubtful.

Question 13

If the particular proposition of a subaltern relation is true, the truth-value of the universal proposition is

A)true
B)false
C)both true and false
D)doubtful.

Question 14

The proposition: "Socrates is wise", is an example for ___________ proposition.

A)negative
B)singular
C)emotive
D)invalid.

Question 15

The quantity of the proposition is determined by the extension of the ______.

A)Subject
B)Predicate
C)Both subject and predicate
D)Copula.

Question 16

In a conditional proposition the part which expresses the condition by 'if' or its equivalent is

A)Antecedent
B)Consequent
C)Opposite
D)Meaning

Question 17

________ is a unit of reasoning in logic.

A)Term
B)Copula
C)Proposition
D)Subject

Question 18

Euler's circles are diagrams representing ________ of the terms.

A)distribution
B)quality
C)quantity
D)meaning

Question 19

A syllogism is a form of ___________ inference.

A)mediate
B)immediate
C)intuitive
D)inductive.

Question 20

A syllogism is form of mediate _________ inference.

A)deductive
B)inductive
C)intuitive
D)fallacious.

Question 21

A syllogism consists of _______ terms.

A)five
B)two
C)three
D)four.

Question 22

A syllogism consists of ________ premisses.

A)two
B)three
C)four
D)five

Question 23

The minor term is the _______________.

A)subject of the conclusion
B)predicate of the conclusion
C)subject of the major premise
D)predicate of the major premise.

Question 24

That term which occurs in the premises and not in the conclusion is

A)Major term
B)Minor term
C)Copula
D)Middle term.

Question 25

__________ performs the function of an intermediary.

A)Major term
B)Middle term
C)Minor term
D)Copula.