Register to reply

Abstract Algebra question

by freefizix
Tags: abstract, algebra
Share this thread:
freefizix
#1
Jun6-07, 12:52 PM
P: 2
This question links to a former discussion on the board. I'm confused regarding this thread:

http://http://www.physicsforums.com/showthread.php?t=3622

Specifically, towards the end of the thread, the asker states (in regards to the union notation originally cited):

"....if we say that x is an element of the union of those sets, then we know x is an element of at least one of those sets. "

I thought the "or" conditional of the union meant that one (and only one) match occurs for x for the notation to be true. I could be wrong....
Phys.Org News Partner Mathematics news on Phys.org
Math journal puts Rauzy fractcal image on the cover
Heat distributions help researchers to understand curved space
Professor quantifies how 'one thing leads to another'
DeadWolfe
#2
Jun6-07, 01:14 PM
P: 461
Nope. "Or" always means non-exclusive or.
freefizix
#3
Jun6-07, 01:43 PM
P: 2
Got it, thanks....


Register to reply

Related Discussions
Abstract algebra question Calculus & Beyond Homework 5
Abstract Algebra - isomorphism question Calculus & Beyond Homework 4
Abstract algebra question Calculus & Beyond Homework 7
Another Abstract Algebra Question... Calculus & Beyond Homework 1
Abstract Algebra question? Linear & Abstract Algebra 13