1. Fuzzy Logic > History of classical Logic (We love Aristotle)
> Problems with classical Logic (We don't love Aristotle)
> Solutions of Fuzzy Logic (We love Lotfi Zadeh)
> Example of Fuzzy Logic (We love comfort)

2. Classical Logic
> Greeks spent a lot of time thinking about truth, reason, and how to wear their beards
> Logical rules are devised to explain the world we live in terms of inference and truth.
> Aristotle set the stage for a major takeover in the sciences and philosophy with his six books on logic (the Organon)
Socrates
Aristotle
Plato

3. Interconnectedness
>Buddha was one of the first to explain reality in terms of unity and interconnectedness.
> “Oneness”
> Everything that exists also may contain its opposite.
Buddha

4. Problems for Classical Logic
> Actual values in world not realized
> Circular or recursive set theory
> Strict rules don't allow partial existance or states (i.e. something happened mostly, etc..)
The sentence below is true.
The sentence above is false.

5. Solutions of Fuzzy Logic
> Allow boundaries of a collection of elements (sets) to be blurry
> Allow elements to be a part of one another
> “Closer” to cognitive reasoning systems (predicting or inferring with partial data)

6. Dr. Lotfi A. Zadeh
>Professor of Electrical Engineering and Computer Science at UC Berkeley since 1959
> Held appointments at the Institute for Advanced Study, Princeton, NJ; MIT; IBM Research Labs; AI Center in Menlo Park, CA; Center for the Study of Language and Information, Stanford U.
> ACM Allan Newell Award, Norbert Wiener Award, Honda prize, Okawa prize .. many more.
> 26 honorary doctorates
> Invented fuzzy set theory and fuzzy logic theory, computing with words.

7. Facets of Fuzzy Theory

8. Application of Fuzzy Logic
-IF temperature is just right THEN keep fan at current speed
-IF temperature is slightly cold THEN slow fan speed slightly
-IF temperature is slightly hot THEN increase fan speed slightly
-IF temperature is very cold then slow fan speed greatly
-IF temperature is very hot THEN increase fan speed greatly
>From this ruleset, optimal performance and use of resources (electricity, gears, filters) can be achieved by simply adding a few circuits and a sensor accordingly.

9. Citation
Zadeh, Lotfi. “Fuzzy Logic” MIT Encyclopedia of the Cognitive Sciences. Cambridge, Massachusetts. MIT press,
Fuzzy Logic Scholarpedia. <
Fuzzy Logic -- History. <

10. External Links Some commercial applications of fuzzy logic:
Dr. Lotfi Zadeh's Scholarpedia “Fuzzy Logic” page: