1. A semi-open rectangle in the R² plane is a set of the form (x, y) E R² | a≤x
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 41E
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1. A semi-open rectangle in the R² plane is a set of the form (x, y) = R² | a≤x <b,c <y <d = R}.
Let B be the set of all half-open rectangles in R².
a. Show that B is a basis of a topology TB of R². Is the topology generated by B equivalent to the
usual topology of R²? why?
b. Show that the relative topology (i.e. subspace topology) of the TA of the
line = {(x,y) Ix +y = 0} is the discrete topology of A
c. Show that the relative topology (i.e. the subspace topology) of the TB of the
line = {x,y) Ix=y } is not the discrete topology of B](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc52fbd7b-9adb-4e52-81b8-0bf956b4f8e7%2F65971aa5-d2eb-47d5-b9d8-3ca79f6b8eae%2Fc2m228m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:SOLVE STEP BY STEP IN DIGITAL FORMAT
1. A semi-open rectangle in the R² plane is a set of the form (x, y) = R² | a≤x <b,c <y <d = R}.
Let B be the set of all half-open rectangles in R².
a. Show that B is a basis of a topology TB of R². Is the topology generated by B equivalent to the
usual topology of R²? why?
b. Show that the relative topology (i.e. subspace topology) of the TA of the
line = {(x,y) Ix +y = 0} is the discrete topology of A
c. Show that the relative topology (i.e. the subspace topology) of the TB of the
line = {x,y) Ix=y } is not the discrete topology of B
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