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8. Give an example of each of the following : (a) a set which is a nbd. of each of its (b) a set which is not a nbd. of any of its points, (c) a set which is a nbd. of each of its points with the exception of опе point, points,

8. Give an example of each of the following : (a) a set which is a nbd. of each of its (b) a set which is not a nbd. of any of its points, (c) a set which is a nbd. of each of its points with the exception of опе point, points,

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.3: Informal Geometry And Measurement
Problem 9E: Must two different points be collinear? Must three or more points be collinear? Can three or more...
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8. Give an example of each oj the following: (a) a set which is a nbd. of each of its points, (b) a set which is not a nbd. of any of its points, (c) a set which is a nbd. of each of its points with the exception of опe point, (d) a set which is not an interval but is a nbd. of each of its points.
Transcribed Image Text:8. Give an example of each oj the following: (a) a set which is a nbd. of each of its points, (b) a set which is not a nbd. of any of its points, (c) a set which is a nbd. of each of its points with the exception of опe point, (d) a set which is not an interval but is a nbd. of each of its points.
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