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 April 26th, 2018, 01:36 AM #1 Senior Member   Joined: Nov 2011 Posts: 250 Thanks: 3 set/function What are the differences between set and function? Last edited by skipjack; April 26th, 2018 at 10:23 AM.
 April 26th, 2018, 10:25 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,370 Thanks: 2007 A function is a particular type of set.
 April 27th, 2018, 04:31 AM #3 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 Precisely, a "function from set A to set B" is a subset of the set of all pairs (a, b) where a is from set A and b is from set B.
 April 27th, 2018, 06:43 AM #4 Global Moderator   Joined: Dec 2006 Posts: 20,370 Thanks: 2007 That would be a relation, not necessarily a function. Thanks from topsquark and Country Boy
 April 27th, 2018, 11:44 AM #5 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 Oops! Yes, I forgot the "uniqueness" condition.

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