Difference between revisions of "Iff"
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| − | [https://www.youtube.com/embed/MckXBKafPfw Mathematical Logic] | + | [https://www.youtube.com/embed/MckXBKafPfw Mathematical Logic] (I am in process of making a smoother version of this -themathematicianisin). |
==See Also== | ==See Also== | ||
Revision as of 16:55, 31 July 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.
Example
In order to prove a statement of the form "
iff 
," it is necessary to prove two distinct implications:
- if
then 
- if then
Videos
Mathematical Logic (I am in process of making a smoother version of this -themathematicianisin).
See Also
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