Symbolic Logic Set 10
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This set of Symbolic Logic Multiple Choice Questions & Answers (MCQs) focuses on Symbolic Logic Set 10
Q1 | ‘ q if p ‘ is symbolized as……………………………….
- ‘q Ͻ p’
- ‘p ≡ q’
- ‘p v q’
- ’ p Ͻ q ‘
Q2 | “p only if q “ is symbolized as ……………………….
- ‘p ≡ q’
- ‘ p Ͻ q ‘
- ‘q Ͻ p’
- ‘p v q’
Q3 | ’ The conjunction of p with the disjunction of q with r’, is symbolized as …….
- ( p vq ) . r
- ( p . q ) v r
- p . ( q v r )
- p v ( q . r )
Q4 | ‘The disjunction whose first disjunct is the conjunction of p and q and whosesecond disjunct is r ‘ is symbolized as ………………………..
- p v ( q . r )
- ( p vq ) . r
- p . ( q v r )
- ( p . q ) v r
Q5 | The negaton of A V B is symbolized as ………………
- A v B
- ( A V B )
- A V B
- A V B
Q6 | ‘ A and B will not both be selected ’ is symbolized as ………………………..
- ( A . B )
- A v B
- A V B
- A . B
Q7 | Ramesh and Dinesh will both not be elected.
- A V B
- A . B
- ( A . B )
- A v B
Q8 | An argument can be proved invalid by constructing another argument of thesame form with …………………….
- false premises and false conclusion
- true premises and false conclusion
- true premises and true conclusion
- false premises and true conclusion
Q9 | …………………………… can be defined as an array of symbols containing statement variables but no statements, such that when statements are substituted for statement variables- the same statement being substituted for the samestatement variable throughout – the result is an argument
- specific statement form
- A statement form
- An argument form
- An argument
Q10 | Any argument that results from the substitution of statements for statementvariables in an argument form is called ………………………………
- invalid argument
- valid argument
- the specific form
- a “ substitution instance” of that argument form
Q11 | In case an argument is produced by substituting a different simple statement foreach different statement variable in an argument form, that argument form is called ……………………
- the “specific form” of that argument
- a “ substitution instance” of that argument form
- valid argument
- invalid argument
Q12 | If the specific form of a given argument has any substitution instance whosepremises are true and whose conclusion is false, then the given argument is.
- valid
- invalid
- valid or invalid
- sound
Q13 | Refutation by logical analogy is based on the fact that any argument whosespecific form is an invalid argument form is ………………………..
- sound
- a contradiction
- an invalid argument.
- a valid argument
Q14 | ’statement form from which the statement results by substituting a differentsimple statement for each different statement variable’ is called ……………………..
- the specific form of a given argument
- tautology
- contradiction
- the specific form of a given statement
Q15 | A statement form that has only true substitution instances is called……………………
- a “ tautologous statement form “ or a “ tautology”
- a self-contradictory statement form or contradiction
- A contingent statement form
- specific statement form
Q16 | Statement forms that have both true and false statements among theirsubstitution instances are called ……………………………………………..
- tautologous statement forms
- contingent statement forms
- self-contradictory statement forms
- specific statement forms
Q17 | Two statements are ………………… when their material equivalence is a tautology
- self-contradictory
- contingent
- logically equivalent
- materially implying
Q18 | …………………. statements have the same meaning and may be substituted for oneanother
- Materially equivalent
- Logically equivalent
- Tautologous
- self-contradictory
Q19 | p v q) is logically equivalent to ………………………………..
- p . q
- p v q
- p v q
- p v q
Q20 | An argument form is valid if and only if it’s expression in the form of a conditionalstatement is ……………
- a contradiction
- a biconditional
- a tautology
- material implication
Q21 | “ If a statement is false, then it implies any statement whatever”
- p Ͻ (P Ͻ q)
- p Ͻ (p Ͻ q)
- p Ͻ (q Ͻ p)
- p Ͻ (q Ͻ p)