Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Open and Shut
Replies: 10   Last Post: Feb 4, 2013 10:50 PM

 Search Thread: Advanced Search

 Messages: [ Previous | Next ]
 William Elliot Posts: 2,637 Registered: 1/8/12
Open and Shut
Posted: Feb 2, 2013 11:13 PM
 Plain Text Reply

A subset A, of an ordered set is convex when
for all x,y in A, for all a, (x <= a <= y implies a in A).

I will call an interval an order convex subset of Q.
Given an interval, what's the probablity that it's
open, closed, both, neither?

Given an open subset of Q, what's the probablity that it's clopen?
Given an closed subset of Q, what's the probablity that it's clopen?

Date Subject Author
2/2/13 William Elliot
2/3/13 Shmuel (Seymour J.) Metz
2/3/13 David C. Ullrich
2/4/13 William Elliot
2/3/13 Virgil
2/3/13 Butch Malahide
2/3/13 William Elliot
2/4/13 Virgil
2/4/13 Butch Malahide
2/4/13 Virgil
2/4/13 Shmuel (Seymour J.) Metz

© The Math Forum at NCTM 1994-2018. All Rights Reserved.