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Which of the following is not a logical connective?

Option: 1

Conjunction 


Option: 2

Disjunction


Option: 3

Negation 

 


Option: 4

Induction


Answers (1)

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Conjunction, disjunction, and negation are the three basic logical connectives.

Option (1) is incorrect as conjunction refers to the operation of connecting two or more propositions using the logical operator "and". 

For example, "A and B" is a conjunction of the propositions A and B. The resulting compound proposition is true only if both A and B are true.

Option (2) is incorrect as disjunction is the operation of connecting two or more propositions using the logical operator "or". 

For example, "A or B" is a disjunction of propositions A and B. The resulting compound proposition is true if at least one of the propositions is true. 

Option (3) is incorrect as negation is the operation of negating a proposition that is, making a statement of the form "not A". The negation of proposition A is denoted as ¬A, and it is true if and only if A is false. 

For example, if A is the proposition "It is raining", then ¬A is the negation "It is not raining".

Option (4) is correct as induction is a method of reasoning used in mathematics and science.

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himanshu.meshram

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