Deck 7: Truth Values, Symbolism, and Logic in Propositional Logic

Question 1

. If B is true, Y is false , then the truth value of the compound statement (~B . ~Y)

A)true
B)false
C)cannot be determined
D)none of these

Answer 1

false

Question 2

The terms Validity/ Invalidity refers to

A)propositions
B)terms
C)copula
D)arguments

Answer 2

arguments

Question 3

A and B are true, X and Y are false , then the truth value of the compound Statement [ (A v B) . (X v Y)]

A)true
B)false
C)cannot be determined
D)none of these

Answer 3

false

Question 4

'Either Railways or Navy will win the Football championship' is symbolised as ---

A)r . n
B)r ? n
C)r v n
D)none of these

Question 5

A and B are true, X and Y are false , then the truth value of the compound Statement [ (A . B) v (X . Y)]

A)true
B)false
C)cannot be determined
D)none of these

Question 6

'If Tata wins its first game , then Birla or Reliance wins its first game' is symbolised as ---

A)t . (b ? r)
B)t v (b . r)
C)t ? )b v r)
D)none of these

Question 7

' If p then q' is symbolised as -----

A)p . q
B)p ? q
C)q. p
D)none of these

Question 8

Truth / Falsity refers to

A)propositions
B)terms
C)copula
D)none of these

Question 9

If A and B are true, X and Y are false , then the truth value of the compound Statement [ (A . Y) v (B . X)]

A)true
B)false
C)cannot be determined
D)none of these

Question 10

Validity/ Invalidity refers to

A)propositions
B)terms
C)copula
D)none of these

Question 11

( p ? q) is an example for --- statement forms

A)contradictory
B)tautology
C)contingent
D)none of these

Question 12

. A and B are true, X and Y are false , then the truth value of the compound Statement [ (A . X) v (B . Y)]

A)true
B)false
C)cannot be determined
D)none of these

Question 13

The specific form of the given statement W . ~ W is -----

A)p . ~ q
B)p . ~ p
C)cannot be determined
D)none of these

Question 14

The specific form of the given statement L ? W is -----

A)p v q
B)q . p
C)p ? q
D)none of these

Question 15

( p . q) is an example for --- statement forms

A)contradictory
B)tautology
C)contingent
D)none of these

Question 16

'Raju is intelligent' is symbolized as

A)i. r
B)r. i
C)r
D)none of these

Question 17

Logic is the ………………………………………..

A)science of reasoning
B)science of beauty
C)science of morality
D)science of astronomy

Question 18

The proposition arrived at on the basis of proposition or propositions in an argument, is called……………………………..

A)premise
B)modus ponens
C)conclusion
D)modus tollens

Question 19

The proposition or propositions on the basis of which the conclusion is arrived at in an argument is called …………………………..

A)syllogism or syllogisms
B)dilemma
C)premise or premises
D)disjunctive syllogism

Question 20

Premises and conclusion are…………………………….

A)valid or invalid
B)sound or unsound
C)valid or sound
D)true or false

Question 21

Deductive argument is characterized as…………………………….

A)true or false
B)inductive
C)valid or invalid
D)materially true or materially false

Question 22

Validity of deductive argument depends on……………………………………

A)form of argument
B)matter of argument
C)both form and matter
D)truth of premises and conclusion

Question 23

……………………………………………….reveals the form of argument

A)truth or falsity of propositions
B)use of symbols
C)true premises
D)true conclusion

Question 24

In the history of logic, …………….………………….are two important stages of development.

A)Classical logic and Symbolic logic
B)scientific and artistic
C)aesthetical and ethical
D)valid and invalid

Question 25

Classical logic is also called ………………………………………

A)symbolic logic
B)mathematical logic
C)modern logic
D)ancient logic