Abstract Algebra question

  • Thread starter freefizix
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  • #1
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This question links to a former discussion on the board. I'm confused regarding this thread:

https://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....:biggrin:
 
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Answers and Replies

  • #2
453
1
Nope. "Or" always means non-exclusive or.
 
  • #3
2
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Got it, thanks....
 

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