A community for students.
Here's the question you clicked on:
 0 viewing
sasogeek
 4 years ago
a null set and an empty set, are they the same?
sasogeek
 4 years ago
a null set and an empty set, are they the same?

This Question is Closed

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.1Hi @sasogeek , in every context I've ever seen, null set and empty set mean the same thing. A set with no elements.

sasogeek
 4 years ago
Best ResponseYou've already chosen the best response.0well we had an exam and the teacher asked which of the following options was a null set. a. b.{} c.{0} d.\(\phi \)

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.1Heh. If I were grading this, I'd accept b or d. Perhaps your professor has a preferred notation? Here is the definition from Wolfram Mathworld: http://mathworld.wolfram.com/NullSet.html

sasogeek
 4 years ago
Best ResponseYou've already chosen the best response.0so i guess i'm wrong...? since \(\phi \) denotes {} ?

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.1To me, this is splitting hairs. I'd ask your professor if s/he has a preferred notation and go with that for future reference.

sasogeek
 4 years ago
Best ResponseYou've already chosen the best response.0i asked him during the test and he said it was meant to confuse us but he'll tell us the answer next class so i look forward to questioning him tomorrow since tomorrow is the next lecture :)

mathteacher1729
 4 years ago
Best ResponseYou've already chosen the best response.1Strange. Well, to each their own. For me, I try to make definitions and notation as clear as possible from day 1. ;p But that's me.

sasogeek
 4 years ago
Best ResponseYou've already chosen the best response.0hmmm oh well. i guess i'd never know which answer he's in search of unless he utters it himself. thanks for the help though :) that link helped a bit. and i appreciate your input x
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.