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Class 11 Logic And Philosophy Chapter 6 Modern Classification of Proposition
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Modern Classification of Proposition
Chapter – 6
LOGIC & PHILOSOPHY
VERY SHORT TYPES QUESTIONS AND ANSWERS
1. Answer the Following Questions :
(a) Is Aristotle a modern logician?
Ans : No, Aristotle was a traditional logician.
(b) On what ground modern logicians classify proposition?
Ans : Modern logicians classify proposition on the ground of structure and elements of propositions.
(c) Basically how many kinds of propositions we have?
Ans : There are three kinds of propositions
They are :
(i) Simple proposition.
(ii) Compound proposition.
(iii) General proposition.
(d) How many kinds of simple propositions we get in logic?
Ans : There are four kinds of simple propositions.
They are :
(i) Subjectless proposition.
(ii) Subject-predicate proposition.
(iii) Relational proposition.
(iv) Class membership proposition.
(e) Are Class membership proposition and General proposition same? If not, write two points of difference.
Ans : No, Class membership proposition and General proposition are not same.
The main differences between them are :
(i) Class membership proposition is a kind of simple proposition. On the other hand, General proposition is not simple proposition.
(ii) In Simple proposition, only the predicate term is class but the subject term is an individual. On the other hand, in General proposition both the subject and predicate terms are classes.
(f) What is the nature of General proposition? Into how many kinds General proposition can be divided?
Ans : General proposition is a proposition about classes. It does not make an assertion about an individual. A general proposition may assert
(i) the existence of something.
(ii) a property or an attribute about the whole universe.
(iii) relation between two classes.
General proposition can be divided into three kinds :
(i) Existential proposition
(ii) One-predicate universal proposition
(iii) General proposition asserting relation between two classes,
(g) What is the basic difference between Compound proposition and General proposition?
|Unit – 1||Logic|
|Unit – 2||Proposition|
|Transformation of Ordinary Sentences to Logical Proposition|
|Distribution of a term is a logical Proposition|
|Modern Classification of Proposition|
|Unit – 3||Inference, Categorical Syllogism|
|Unit – 4||Symbolic Logic|
|Unit – 5||Philosophy|
|Unit – 6||Indian Philosophy|
|Unit – 7||Theory of Knowledge|
|Rationalism & Empiricism|
|Pramāna: Pratyaksa and Anumana|
|Unit – 8||Realism and Idealism|
Ans : The basic difference between Compound proposition and General proposition is that unlike compound proposition the elements of general proposition are not simple proposition.
(h) ‘All men are rational. What type of proposition is it?
Ans : General proposition.
(i) Thief, Thief….! what kind of proposition is it?
Ans : Subjectless proposition.
(j) In what sense the term ‘or’ used in disjunction proposition?
Ans : The term “or’ is used in inclusive sense in a disjunction proposition.
2. Find out the correct answer :
(a) Modern logicians classify/ do not classify propositions according to mixed principle of quality and quantity.
Ans : do not classify.
(b) Simple proposition is of three/ four kinds.
Ans : Four kinds.
(c) The word “or in Alternative proposition is used in inclusive/exclusive sense.
Ans : Exclusive sense.
(d) A compound proposition is called Atomic/ Molecular proposition.
Ans : Molecular proposition.
(e) A proposition which assorts existence of something is Compound General/ Simple proposition.
Ans : General proposition.
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