What Does A (+) B Represent in Set Theory?

  • Thread starter Thread starter Goldenwind
  • Start date Start date
  • Tags Tags
    Sets
Goldenwind
Messages
145
Reaction score
0
[SOLVED] Quick, simple question on sets

Homework Statement


A - B is the difference
A u B is the union
A n B is the intersection
A (+) B is what?

I would google this, but I haven't a clue what the symbol or function is called. It's supposed to be a +, inside a circle.

Can someone tell me what this symbol means, or at least tell me what it's called, so I can look it up myself?

Edit: In TeX, it's this: \oplus
 
Last edited:
Physics news on Phys.org
Found it.

For anyone else with a similar problem, it's the "symmetric difference"

A (+) B = AuB - AnB
(The set of elements in either A or B, but not in both)
 
Thread 'Use greedy vertex coloring algorithm to prove the upper bound of χ'
Hi! I am struggling with the exercise I mentioned under "Homework statement". The exercise is about a specific "greedy vertex coloring algorithm". One definition (which matches what my book uses) can be found here: https://people.cs.uchicago.edu/~laci/HANDOUTS/greedycoloring.pdf Here is also a screenshot of the relevant parts of the linked PDF, i.e. the def. of the algorithm: Sadly I don't have much to show as far as a solution attempt goes, as I am stuck on how to proceed. I thought...
Back
Top