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The function f(x)=x+1 from the set of integers to itself is onto. Is it True or False?

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The function f(x)=x+1 from the set of integers to itself is onto. Is it True or False?

(a) True

(b) False

I got this question during an online interview.

I need to ask this question from Functions in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

1 Answer

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Best answer
Correct answer is (a) True

Explanation: For every integer “y”  there is an integer “x ” such that f(x) = y.

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