Can someone give me an example of these sets to help me understand it better?

  • Context: Undergrad 
  • Thread starter Thread starter hi-liter
  • Start date Start date
  • Tags Tags
    Example Sets
Click For Summary

Discussion Overview

The discussion revolves around finding examples of three sets of integers, A, B, and C, that satisfy specific union and intersection properties while ensuring that B and C are not equal. The focus is on understanding set operations and their implications in a mathematical context.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • Post 1 requests examples of sets A, B, and C such that A∪B = A∪C and A∩B = A∩C, while B ≠ C.
  • Post 2 provides two cases: Case 1 with A={1,2}, B={1}, C={2} and Case 2 with A={1}, B={1,2}, C={1} as potential examples.
  • Post 3 asks for clarification on how the provided examples relate to the original statements regarding unions and intersections.
  • Post 4 reiterates the request for an explanation of how the examples apply to the union and intersection properties mentioned in Post 1.
  • Post 5 seeks clarification on the notation used in the examples, specifically addressing the meaning of set notation.

Areas of Agreement / Disagreement

Participants are engaged in clarifying the examples provided, but there is no consensus on the applicability of the examples to the original request. The discussion remains unresolved regarding the clarity of the examples in relation to the stated properties.

Contextual Notes

There may be limitations in understanding the examples due to potential ambiguities in set notation and the specific conditions outlined in the original request.

Who May Find This Useful

This discussion may be useful for individuals seeking to understand set theory concepts, particularly unions and intersections, and how to construct examples that meet specific mathematical criteria.

hi-liter
Messages
3
Reaction score
0
Can someone provide me an example of three sets of integers A, B and C such that A[tex]\cup[/tex]B=A[tex]\cup[/tex]C, but B≠C. And also, A[tex]\cap[/tex]B=A[tex]\cap[/tex]C, but B≠C.

Thanks a lot :)
 
Physics news on Phys.org
Case 1: A={1,2}, B={1}, C={2}.
Case 2: A={1}, B={1,2}, C={1}
 
Mathman, can you please explain to me how those numbers apply to the statements ?
 
hi-liter said:
Mathman, can you please explain to me how those numbers apply to the statements ?

Use them to find the unions and intersections around which your first post centered.
 
hi-liter said:
Mathman, can you please explain to me how those numbers apply to the statements ?

Do you a problem with the notation? Specifically: A = {1,2} means A is a set with elements 1 and 2. I hope this clarifies it.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
445
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 20 ·
Replies
20
Views
2K
  • · Replies 40 ·
2
Replies
40
Views
9K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 18 ·
Replies
18
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K