Top 250+ Solved Symbolic Logic MCQ Questions Answer

From 46 to 60 of 265

Q. As per modern interpretation of traditional subject-predicate propositions,A and O propositions are …………………..

a. contraries

b. sub-contraries

c. sub alterns

d. contradictories

  • d. contradictories

Q. The universal quantification of a propositional function is true if and only if ……...

a. at least one substitution instance is true

b. all of it’s substitution instances are false

c. all of it’s substitution instances are true

d. it has both true and false substitution instances

  • c. all of it’s substitution instances are true

Q. The relation between the general propositions x) Mx and x) Mx is ……..………

a. sub contrary

b. contradiction

c. sub altern

d. contrary

  • d. contrary

Q. If x) Mx is true, then x) Mx is …………………

a. true

b. false

c. true or false

d. valid

  • b. false

Q. If x) Mx is false, then x) Mx is …………………

a. valid

b. true

c. true or false

d. false

  • c. true or false

Q. If x) Mx is true, then x) Mx is …………………

a. false

b. true or false

c. true

d. valid

  • a. false

Q. If x) Mx is false, then x) Mx is …………………

a. true or false

b. true

c. valid

d. false

  • a. true or false

Q. Conjunctions are truth functionally ____________ statements.

a. compound

b. simple

c. vague

d. large

  • a. compound

Q. The truth value of _______ statement is true.

a. false

b. true

c. probable

d. conjunction

  • b. true
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