1. Mar 15, 2006 #1

   physicsuser

   

   Hi, stupid question but what does A\B mean?

    

   physicsuser, Mar 15, 2006
2. 
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3. Mar 15, 2006 #2

   chroot

   

   Staff Emeritus

   Science Advisor

   Gold Member

   You might want to provide some context to the question. Otherwise, it's meaningless.
   
   It might mean "A divided by B" or "A given B" or any number of other things.
   
   - Warren

    

   chroot, Mar 15, 2006
4. Mar 15, 2006 #3

   Galileo

   

   Science Advisor

   Homework Helper

   If A and B are sets:
   [tex]A\setminus B=\{x\in A | x\notin B\}[/tex]
   
   Sometimes also written as A-B.

    

   Galileo, Mar 15, 2006
5. Mar 15, 2006 #4

   physicsuser

   

   A and B are sets....
   
   X is improper subset of A\B
   
   http://en.wikipedia.org/wiki/Marriage_theorem#Graph_theory
   they have S\T

    

   physicsuser, Mar 15, 2006

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