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A bijection is a function which is many-one and onto.

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A bijection is a function which is many-one and onto.

(a) True

(b) False

This question was posed to me at a job interview.

My query is from Number of Functions in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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The correct option is (b) False

Easy explanation: A bijection is a function which is one-one(injection) and onto(surjection).

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