Description : Of two sub-contraries if one is false the other is necessarily______ A) true B) false C) doubtful D) neither true nor false.
Last Answer : A) true
Description : 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.
Last Answer : C) doubtful
Description : 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.
Last Answer : B) false
Description : If one of the contradictories is true the other must be _______. A) true B) false C) doubtful D) neither true nor false
Description : Contrary propositions cannot both be ________. A) true B) false C) true and false D) doubtful
Description : 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.
Last Answer : D) doubtful.
Description : 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.
Description : Between subalterns if the universal is true the particular is A) true B) false C) doubtful D) both true and false.
Description : If one premise is negative the conclusion must be________. A) Negative B) Positive C) Both negative and positive D) Neither negative nor positive.
Last Answer : A) Negative
Description : Particular negative proposition distributes __________. A) Subject B) Predicate C) Both Subject and Predicate D) Neither Subject nor Predicate.
Last Answer : B) Predicate
Description : Particular affirmative proposition distributes _________. A) Subject B) Predicate C) Both Subject and Predicate D) Neither Subject nor Predicate.
Last Answer : D) Neither Subject nor Predicate.
Description : Universal negative proposition distributes___________. A) Subject B) Predicate C) Both Subject and Predicate D) Neither Subject nor Predicate.
Last Answer : C) Both Subject and Predicate
Description : Universal affirmative proposition distributes _________. A) Subject B) Predicate C) Both subject and Predicate D) Neither Subject nor Predicate.
Last Answer : A) Subject
Description : ______ 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.
Last Answer : C) Subaltern
Description : 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.
Last Answer : D) sub-contrary.
Description : ___________ 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.
Last Answer : B) Contradictory opposition
Description : __________ 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.
Last Answer : A) Contrary opposition
Description : All Indians are hardworking All Keralites are Indians Therefore, All Keralites are hardworking The above argument is A) Invalid B) False C) Valid D) True
Last Answer : C) Valid
Description : A deductive argument is sound if and only if it is A) valid and all its premises are true B) invalid and all its premises are true C) is valid and one of the premise is false D) is valid and its conclusion is false.
Last Answer : A) valid and all its premises are true
Description : If it is possible for the premises of a deductive argument to be true and its conclusion to be false, that argument is A) Valid B) Invalid C) Indescribable D) Sound.
Last Answer : B) Invalid
Description : The falsehood of a valid deductive argument’s conclusion guarantees that A) the argument is sound B) atleast one of the premise is false C) premises are true D) the validity is uncertain.
Last Answer : B) atleast one of the premise is false
Description : A ---------- is either true or false. A) Question B) Command C) Proposition D) Exclamation
Last Answer : C) Proposition
Description : From two ________ premises no conclusion is possible. A) universal B) affirmative C) negative D) categorical
Last Answer : C) negative
Description : The sign of relation between two terms is called a ________. A) Subject B) Predicate C) Object D) Copula
Last Answer : D) Copula
Description : ________ is a statement of relation between two terms. A) Proposition B) Denotation C) Syllogism D) Dilemma
Last Answer : A) Proposition
Description : A dilemma is ________ when disjunctive minor premise denies the consequents of the major premise A) constructive B) destructive C) subjective D) objective
Last Answer : B) destructive
Description : A dilemma is ________ when disjunctive minor premise affirms the antecedents of the major premise A) constructive B) destructive C) objective D) subjective.
Last Answer : A) constructive
Description : A Dilemma is a ________ syllogism. A) mixed B) categorical C) hypothetical D) disjunctive.
Last Answer : A) mixed
Description : The violation of the rules of a disjunctive syllogism commits the fallacy of ________. A) Illicit major B) Illicit minor C) Improper disjunction D) Ambiguous major
Last Answer : C) Improper disjunction
Description : Euler’s circles are diagrams representing ________ of the terms. A) distribution B) quality C) quantity D) meaning
Last Answer : A) distribution
Description : ________ is a unit of reasoning in logic. A) Term B) Copula C) Proposition D) Subject
Description : A disjunctive proposition is ________ proposition. A) Conditional B) Unconditional C) Categorical D) Imperative
Last Answer : A) Conditional
Description : That proposition in which the quantity of the subject is not stated clearly but left vague is called______________. A) Dilemma B) Fallacy C) Indefinite D) False.
Last Answer : C) Indefinite
Description : A single ------ is enough to prove the inductive conclusion false. A) intuition B) Assumption C) counter-example D) concept.
Last Answer : C) counter-example
Description : A valid deductive argument with true premises is called a ------ argument. A) sound B) unsound C) fallacious D) dilemma.
Last Answer : A) sound
Description : The process by which one proposition is arrived at on the basis of other propositions is called-----------. A) Term B) Concept C) Inference D) Connotation.
Last Answer : C) Inference
Description : If the proposition Vegetarians are not meat eaters is false, then which of the following inferences is correct ? Choose from the codes given below : 1. Some vegetarians are meat eaters is true. 2. All vegetarians are meat eaters is ... , 2 and 3 (B) 2, 3 and 4 (C) 1, 3 and 4 (D) 1, 2 and 4
Last Answer : (A) 1, 2 and 3
Description : Assertion (A): The coin when flipped next time will come up tails. Reason (R): Because the coin was flipped five times in a row, and each time it came up heads. Choose the correct answer from below: (A) Both (A ... A). (D) (A) is doubtful, (R) is false, and (R) is the correct explanation of (A).
Last Answer : (C) (A) is doubtful, (R) is true, and (R) is not the correct explanation of (A).
Description : __________ fallacy occurs when a term is used in two different meanings in the syllogism. A) Undistribute middle B) Two negative premises C) Equivocation D) Illicit major.
Last Answer : C) Equivocation
Description : There are _____ types of categorical syllogism known as figures. A) two B) three C) four D) five.
Last Answer : C) four
Description : A syllogism consists of _______ terms. A) five B) two C) three D) four.
Last Answer : C) three
Description : The two kinds of propositions are A) Connotative – Denotative B) Abstract – Concrete C) Categorical – Conditional D) Good – Bad
Last Answer : C) Categorical – Conditional
Description : Deduction and Induction are two types of----------. A) Arguments B) Terms C) Prepositions D) Concepts.
Last Answer : A) Arguments
Description : Deduction and Induction are two main forms of---------. A) Beliefs B) Concepts C) Reasoning D) Assumptions.
Last Answer : C) Reasoning
Description : A dilemma is complex when the conclusion is __________ proposition. A) implicative B) categorical C) disjunctive D) negative
Last Answer : C) disjunctive
Description : A dilemma is simple when the conclusion is__________ proposition. A) disjunctive B) implicative C) negative D) categorical
Last Answer : D) categorical
Description : If one premise is particular the conclusion must be_________. A) Universal B) Negative C) Affirmative D) Particular.
Last Answer : D) Particular.
Description : Two_______ premises yield no valid conclusion. A) universal B) particular C) affirmative D) categorical.
Last Answer : B) particular
Description : “All thugs are murderers Therefore all Indians are murderers”. The fallacy committed by above argument is A) Illicit minor B) Illicit major C) Ambiguous major D) Undistributed middle.
Last Answer : A) Illicit minor
Description : “All men are selfish No apes are men Therefore no apes are selfish”. The above argument commits the fallacy of A) Undistributed middle B) Illicit major C) Illicit minor D) Ambiguous minor
Last Answer : B) Illicit major