Select all sets that are well ordered All integers greater than -10 Solutions to polynomial (Hint: H The natural numbers All positive rational numbers
Select all sets that are well ordered All integers greater than -10 Solutions to polynomial (Hint: H The natural numbers All positive rational numbers
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Step 1: Explanation
An ordered set is said to be well-ordered if each and every nonempty subset has a smallest or least element.
"All integers greater than -10" is well ordered set.
As, all subsets of the set having "All integers greater than -10" have lower bound -10 and also being discrete set must have minimum or least element in itself, by infimum property.
So, option (1) All integers greater than -10
is correct.
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