Q. Among the following propositions two arc related in such a way that they can both be true although they cannot both be false. Which are those propositions? Select the correct code.

Propositions:
(a) Some priests are cunning.
(b) No priest is cunning.
(c) All priests are cunning.
(d) Some priests are not cunning.

View solution

Q. A Cluster of propositions with a structure that exhibits some inference is called

View solution

Q. Consider the following assertion (A) and reason (R) and select the correct code given below:

(A) : No man is perfect.
(R): Some men are not perfect.

View solution

Q. A definition that has a meaning that is deliberately assigned to some symbol is called:

View solution

Q. If the proposition ‘No men are honest’ is taken to be false which of the following proposition/propositions can be claimed certainly to be true?

Propositions:

View solution

Q. Among the following statements two are contradictory to each other. Select the correct code that represents them:

Statements:

(a) All poets are philosophers.
(b) Some poets are philosophers.
(c) Some poets are not philosophers.
(d) No philosopher is a poet.

View solution

Q. When the purpose of a definition is to explain the use or to eliminate ambiguity the definition is called:

View solution

Q. A deductive argument is invalid if:

View solution

Q. Which of the codes given below contains only the correct statements? Select the code:

Statements:
(a) Venn diagram represents the arguments graphically.
(b) Venn diagram can enhance our understanding.
(c) Venn diagram may be called valid or invalid.
(d) Venn diagram is clear method of notation.

View solution

Q. Inductive reasoning is grounded on:

View solution

Q. If we want to seek new knowledge of facts about the world, we must rely on reason of the type:

View solution

Q. A girl introduced a boy as the son of the daughter of the father of her uncle. The boy is related to the girl as:

View solution

Q. In certain code MATHURA is coded as JXQEROX. The code of HOTELS will be:

View solution

Q. The next term in the series: AB, ED, IH, NM, — is

View solution

Q. If STREAMERS is coded as UVTGALDQR, then KNOWLEDGE will be coded as

View solution

Q. A is brother of B. B is the brother of C. C is the husband of D. E is the father of A. D is related to E as

View solution

Q. Warrior is related to sword, carpenter is related to saw, farmer is related to plough. In the same way, the author is related to

View solution

Q. Given below is a diagram of three circles A, B and C over-lapping each other? The circle A represents the class of honest people, the circle B represent the class of sincere people and circle C represents the class of politicians. p, q, r, s, U, X, Y represent different regions. Select the code that represents the region indicating the class of honest politicians who are not sincere.

View solution

Q. “A man ought no more to value himself for being wiser than a woman if he owes his advantage to a better education, than he ought to boast of his courage for beating a man when his hands were tied.” The above passage is an instance of

View solution

Q. By which of the following proposition, the proposition “wise men are hardly afraid of death” is contradicted?

View solution