Understanding Sets: Simplifying a Confusing Explanation and Question

[mohabitar]

I'm not quite understanding the explanation, or what the question is even asking. Anyone care to politely put it in simpler terms? Or in words or in a way that would make it easy for me to see?

 

[tiny-tim]

hi mohabitar!

it's saying that it's not true that any subset of the integers has a lower bound …

for example, the negative odd integers have no lower bound

 

[mohabitar]

Hmm ok so that works for the solution, but what if that wasnt there. How would I be able to tell what the question is asking? How would you have been able to see it had the solution not been there?

 

[tiny-tim]

hi mohabitar!

(just got up :zzz: …)

Hmm ok so that works for the solution, but what if that wasnt there. How would I be able to tell what the question is asking? How would you have been able to see it had the solution not been there?

In English, the question says "For any subset A of Z, there is no element y of Z such that y is less than (or equal to) every element of A."

Why do you not understand the question that way?

 

[blue_raver22]

I can help clarify the concept of sets for you. A set is a collection of objects or elements that share a common characteristic. For example, a set of fruits could include apples, oranges, and bananas. The confusing explanation may be referring to the mathematical notation and terminology used in describing sets, such as union, intersection, and subsets. The question is likely asking for a simpler explanation or visual representation of how sets work. Imagine a Venn diagram, where overlapping circles represent sets and the areas where they overlap represent elements that are shared between the sets. I hope this helps to simplify the concept for you.