Let N be endowed with the discrete topology and Y = (0} u, nEN- (0, 1}> be a subspace of R. The topology on Y is the induced topology by the Euclidean topology on R. We define the function f:N-(0} Y by f(1) 0 and f(n) = , %3D Vn > 1. 1. is a one to one function. a True b. False 2. f is onto. a True b. False 3. f is continuous. a. True b. False 4. (0} is open in Y. a. True b. False 5. is continuous. a. True b. False 6. f is a homeomorphism. a. True b. False

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let N be endowed with the discrete topology and Y = (0} U<,
nEN-
(0.1)> be a subspace of
R. The topology on Y is the induced topology by the Euclidean topology on R. We define the function
S:N-(0}- Y by f(1) = 0 and f(n)=
Vn > 1.
1. is a one to one function.
a True
b. False
2. f is onto.
a True
b. False
3. f is continuous.
a. True
b. False
4. (0} is open in Y.
a. True
b. False
5. is continuous.
a. True
b False
6. f is a homeomorphism.
a. True
b. False
Transcribed Image Text:Let N be endowed with the discrete topology and Y = (0} U<, nEN- (0.1)> be a subspace of R. The topology on Y is the induced topology by the Euclidean topology on R. We define the function S:N-(0}- Y by f(1) = 0 and f(n)= Vn > 1. 1. is a one to one function. a True b. False 2. f is onto. a True b. False 3. f is continuous. a. True b. False 4. (0} is open in Y. a. True b. False 5. is continuous. a. True b False 6. f is a homeomorphism. a. True b. False
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