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Essentials of Formal Logic
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Essentials of Formal Logic
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25 Questions

1. The proposition: “ No men are perfect”.- is an example for __________ proposition
2. Opposition is a ___________ inference
3. The fallacy occurs when the minor term which is not distributed in the minor premise but distributed in the conclusion is
4. In inductive reasoning the conclusion is -------
5. Validity or Invalidity may be predicated of ---------
6. Universal or Particular is the classification of the propositions on the basis of _______
7. Both premises and conclusion of an argument are _______
8. A dilemma is ________ when disjunctive minor premise affirms the antecedents of the major premise
9. “ Food is indispensable to life. Plantain is a food. Therefore plantain is indispensable to life.” The fallacy committed by the above syllogism is
10. The following argument: “ All mammals have wings. All reptiles are mammals. Therefore all reptiles have wings ”. Is----------.
11. Eduction is a ___________ inference
12. _____________ asserts the agreement or disagreement of a subject and predicate after having compared each with middle term
13. ______ opposition is the relation between two propositions having the same subject and predicate but differing in quantity only
14. ______ is a valid mood of the first figure
15. “All men are selfish. No apes are men. Therefore no apes are selfish”. The above argument commits the fallacy of
16. That proposition which is affirmed on the basis of premises is called
17. If it is possible for the premises of a deductive argument to be true and its conclusion to be false, that argument is
18. A syllogism is form of mediate _________ inference
19. A syllogism consists of ________ premisses
20. “All thugs are murderers. All thugs are Indians. Therefore all Indians are murderers”. The fallacy commited by above argument is
21. Euler’s circles are diagrams representing ________ of the terms
22. A proposition in which the predicate belongs only to a part of the denotation of the subject is called
23. The process by which one proposition is arrived at on the basis of other propositions is called-----------
24. Modus tollens is also known as________
25. A dilemma is ________ when disjunctive minor premise denies the consequents of the major premise

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