Let a e R which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) ) - U(-) nẾN a; is irrational U ).a is rational o-Uw) a rational

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter6: More On Rings
Section6.4: Maximal Ideals (optional)
Problem 7E
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Let a E R which expressions are correct? and give the justification why
they are part of the Borel o-algebra, B(R)
u
) - U()
{a} -
nẾN
a; is irrational
U ).a is rational
ఆ • Uవ ఒకఅiein
3.95)
Transcribed Image Text:Let a E R which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) u ) - U() {a} - nẾN a; is irrational U ).a is rational ఆ • Uవ ఒకఅiein 3.95)
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