Difference between revisions of "Iff"

m
Line 1: Line 1:
 
'''Iff''' is an abbreviation for the phrase "if and only if."
 
'''Iff''' is an abbreviation for the phrase "if and only if."
  
In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B and that B implies A.   
+
In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B ("if A then B") and that B implies A ("if B then A").   
  
 
{{stub}}
 
{{stub}}
  
 
[[Category:Definition]]
 
[[Category:Definition]]

Revision as of 09:30, 7 July 2006

Iff is an abbreviation for the phrase "if and only if."

In order to prove a statement of the form, "A iff B," it is necessary to prove two distinct implications: that A implies B ("if A then B") and that B implies A ("if B then A").

This article is a stub. Help us out by expanding it.

Invalid username
Login to AoPS