71. A compound proposition's truth or falsity is unequivocally determined by whom?
72. No mathematicians are musicians.
All mathematicians are scientists.
∴ No scientists are musicians.
In this syllogism, there is a fallacy of
All mathematicians are scientists.
∴ No scientists are musicians.
In this syllogism, there is a fallacy of
73. Consider the following statements
1. All valid arguments have only true premises.
2. A sound argument must be valid.
3. An argument with a false conclusion cannot be valid.
4. All arguments with true conclusion are valid.
Which of the statements given above is/are correct?
1. All valid arguments have only true premises.
2. A sound argument must be valid.
3. An argument with a false conclusion cannot be valid.
4. All arguments with true conclusion are valid.
Which of the statements given above is/are correct?
74. Another name of material equivalence is what?
75. A truth function is referred as
1. set of truth values.
2. infinite number of truth values.
3. finite number of truth values.
4. set of false values.
Select the correct answer:
1. set of truth values.
2. infinite number of truth values.
3. finite number of truth values.
4. set of false values.
Select the correct answer:
76. $$\eqalign{
& {P_1} \to {\text{Some Spaniels are not good hunters}} \cr
& {{\text{P}}_2} \to \underline {{\text{All Spaniels are gentle dogs}}} \cr
& C \to \,\therefore \underline {{\text{No gentle dogs are good hunters}}} \cr} $$
This syllogism involves the fallacy of
This syllogism involves the fallacy of
77. Which one to the following symbolic forms represents the principle of Identity correctly?
78. In the statement, if all the variables are false than it is called contingent statement.
79. How many rules of inference give formal proof of validity?
80. No astrologers are scientists.
Some scientists are not magicians.
Some magicians are not astrologers.
This syllogism involves the fallacy of
Some scientists are not magicians.
Some magicians are not astrologers.
This syllogism involves the fallacy of
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