Symbolic Logic Set 12

Bachelor of Arts in Philosophy (BA Philosophy),

Master of Arts in Philosophy (MA Philosophy)

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This set of Symbolic Logic Multiple Choice Questions & Answers (MCQs) focuses on Symbolic Logic Set 12

Q1 | As per modern interpretation of traditional subject-predicate propositions,A and O propositions are …………………..
  • contraries
  • sub-contraries
  • sub alterns
  • contradictories
Answer: contradictories
Q2 | As per modern interpretation of traditional subject-predicate propositions,E and I propositions are ………………………………
  • Contradictories
  • sub alterns
  • sub-contraries
  • contraries
Answer: Contradictories
Q3 | The universal quantification of a propositional function is true if and only if ……...
  • at least one substitution instance is true
  • all of it’s substitution instances are false
  • all of it’s substitution instances are true
  • it has both true and false substitution instances
Answer: all of it’s substitution instances are true
Q4 | The relation between the general propositions (x) Mx and (∃x ) Mx is ……………
  • contrary
  • contradiction
  • sub contrary
  • sub altern
Answer: contradiction
Q5 | The relation between the general propositions x) Mx and (∃x ) Mx is ………..……
  • contradiction
  • sub contrary
  • sub altern
  • contrary
Answer: contradiction
Q6 | The relation between the general propositions x) Mx and x) Mx is ……..………
  • sub contrary
  • contradiction
  • sub altern
  • contrary
Answer: contrary
Q7 | The relation between the general propositions (∃x ) Mx and (∃x ) Mx is …………
  • contrary
  • sub altern
  • sub contrary
  • contradiction
Answer: sub contrary
Q8 | If x) Mx is true, then x) Mx is …………………
  • true
  • false
  • true or false
  • valid
Answer: false
Q9 | If (x) Mx is true, then (∃x ) Mx is …………………..
  • false
  • true
  • valid
  • true or false
Answer: true
Q10 | If (x) Mx is true, then (∃x ) Mx is …………………………..
  • true or false
  • true
  • false
  • valid
Answer: false
Q11 | If x) Mx is false, then x) Mx is …………………
  • valid
  • true
  • true or false
  • false
Answer: true or false
Q12 | If (x) Mx is false, then (∃x ) Mx is …………………..
  • true or false
  • false
  • valid
  • true
Answer: true or false
Q13 | If (x) Mx is false, then (∃x ) Mx is …………………………..
  • true
  • valid
  • false
  • true or false
Answer: true
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