McqMate
Sign In
Hamberger menu
McqMate
Sign in
Sign up
Home
Forum
Search
Ask a Question
Sign In
McqMate Copyright © 2024
→
Computer Science Engineering (CSE)
→
Discrete Structure (DS)
→
Unit 2
→
Let A be a finite set. If f : A → A is i...
Q.
Let A be a finite set. If f : A → A is injective then it is surjective.
A.
T
B.
F
Answer» A. T
2.9k
0
Do you find this helpful?
58
View all MCQs in
Discrete Structure (DS)
Discussion
No comments yet
Login to comment
Related MCQs
How many onto (or surjective) functions are there from an n-element (n => 2) set to a 2-element set?
The function f : A → B is injective if whenever f (x)= f (y), where x, y € A, then x = y.
If |A|=5 and |B|=4, then there exists an injective function f: B→A.
If A be a finite set of size n, then number of elements in the power set of A x A is
Let p be “He is tall” and let q “He is handsome”. Then the statement “It is false that he is short or handsome” is:
Let f : X →Y and g : Y → Z. Let h = go f : X → Z. Suppose g is one-to-one and onto. Which of the following is FALSE?
Let A = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16} and consider the divides relation on A. Let C denote the length of the maximal chain, M the number of maximal elements, and m the number of minimal elements. Which is true?
Let P(S) denote the power set of set S. which of the is always true
Let R be a relation on a set A = {1, 2, 3, 4} given by R = {(1, 1), (1, 2), (1, 3), (2, 1), (2,2), (2, 3), (3, 1), (3, 2), (3, 3)}. Then the relation is:
Let P(S) denotes the powerset of set S. Which of the following is always true?