March 10th, 2011, 01:33 PM  #1 
Member Joined: Nov 2010 Posts: 78 Thanks: 0  Set Recursive Definitions
Please help me with the following question about unions and intersections: Given sets A1,A2,A3,...., develop recursive definitions for U from j=1 to k of Aj and Intersection from j=1 to k of Aj Need to find and prove an extension of De Morgan's laws for these unions and intersections. Thank you in advance for the help! 
March 10th, 2011, 02:01 PM  #2 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Set Recursive Definitions
Moved to Set Theory.

March 12th, 2011, 05:44 AM  #3 
Senior Member Joined: Oct 2007 From: Chicago Posts: 1,701 Thanks: 3  Re: Set Recursive Definitions
How do you add numbers a+b+c+d+...+k ? Can you do the same thing with the union of sets? 

Tags 
definitions, recursive, set 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
recursive definitions  lamhmh  Applied Math  7  July 14th, 2011 08:46 AM 
Interest definitions  14incognito92  Algebra  2  April 3rd, 2011 02:14 PM 
Some Definitions  studentx  Abstract Algebra  4  November 24th, 2010 06:55 AM 
Definitions  Recipe  Algebra  0  March 13th, 2010 01:16 PM 
Set Recursive Definitions  jstarks4444  Number Theory  0  December 31st, 1969 04:00 PM 