My Math Forum > Math Sets (cardinality)

 Math General Math Forum - For general math related discussion and news

 March 15th, 2017, 06:10 PM #1 Newbie   Joined: Mar 2017 From: canada Posts: 1 Thanks: 0 Sets (cardinality) What is meant by odd and even cardinality in set theory. What are formulas to use them? Last edited by skipjack; August 7th, 2017 at 10:23 PM.
 August 7th, 2017, 10:24 PM #2 Global Moderator   Joined: Dec 2006 Posts: 20,759 Thanks: 2138 Do you still need help with this?
 August 8th, 2017, 04:29 PM #3 Global Moderator   Joined: May 2007 Posts: 6,770 Thanks: 700 I presume the terms refer only to sets with finite number of elements.
 September 1st, 2017, 08:42 AM #4 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 For finite sets, the "cardinality" is just the number of elements in the set. A set has even cardinality if it contains an even number of elements and has odd cardinality if it contains an odd number of elements. {a, b, c} has three elements so has odd cardinality. {a, b, c, d} has four elements so has even cardinality.

 Tags cardinality, sets

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Ezio Abstract Algebra 0 September 4th, 2015 02:06 AM fienefie Real Analysis 6 February 24th, 2015 02:14 PM BenFRayfield Number Theory 0 February 15th, 2014 02:55 PM Phatossi Real Analysis 2 November 4th, 2012 09:14 PM Aeonitis Applied Math 4 August 4th, 2010 07:32 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top