Iff: Difference between revisions
Gödel |
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* if <math>q</math> then <math>p</math> | * if <math>q</math> then <math>p</math> | ||
=== | ===Applications=== | ||
[ | [[Godel's_First_Incompleteness_Theorem]] | ||
===Videos=== | ===Videos=== | ||
Revision as of 01:08, 24 December 2020
Iff is an abbreviation for the phrase "if and only if."
In mathematical notation, "iff" is expressed as
.
It is also known as a biconditional statement.
An iff statement
means
and
at the same time.
Examples
In order to prove a statement of the form "
iff
," it is necessary to prove two distinct implications:
- if
then 
- if
then 
Applications
Godel's_First_Incompleteness_Theorem
Videos
Mathematical Logic ("I am in process of making a smoother version of this" -themathematicianisin).
See Also
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