61. 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 can't be valid.
4. All arguments with true conclusion are valid.
Which of the following statements 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 can't be valid.
4. All arguments with true conclusion are valid.
Which of the following statements is/are correct?
62. No intelligent communication is possible without whom?
63. On . . . . . . . . rules, the law of thought are based?
64. The difference between Aristotlean and Boolean interpretation of categorical propositions is as follows
65. Aristotle is a great logician, his work is said to formulate the concepts of early philosophical study
66. Which one of the following options is correct regarding the weak and strong sense of disjunction?
67. Match the following.
List-I
List-II
a. Introduction to logical theory
1. Aristotle
b. Tractatus Logicophi-Losophicus
2. George Bullen
c. Prior Analysis
3. PF Strawson
d. The Laws of thought
4. Wittgenstein
| List-I | List-II |
| a. Introduction to logical theory | 1. Aristotle |
| b. Tractatus Logicophi-Losophicus | 2. George Bullen |
| c. Prior Analysis | 3. PF Strawson |
| d. The Laws of thought | 4. Wittgenstein |
68. According to Copi and Cohen, there are how many rules about distribution of terms which comes in valid propositions?
69. In any pair of corresponding propositions, the universal proposition is called the . . . . . . . . and the particular is called the . . . . . . . .
70. Match the following:
List-I
List-II
a. Quality
1. A proposition is either affirmative or negative
b. Quantity
2. A proposition is either universal or particular
c. Relation
3. A proposition is either categorical or condition
d. Significance
4. A proposition is either analytic or synthetic
| List-I | List-II |
| a. Quality | 1. A proposition is either affirmative or negative |
| b. Quantity | 2. A proposition is either universal or particular |
| c. Relation | 3. A proposition is either categorical or condition |
| d. Significance | 4. A proposition is either analytic or synthetic |
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