Probability theory and fuzzy sets theory of L. Zadeh: the difference and the similarity

Logical operations being made by artificial intelligence will be based on many valued logic, but better to say, on fuzzy logic. Here we the preference to use the fuzzy sets theory of Zadeh. Physical phenomena being “perceived” by artificial intelligence can be considered as events. In the probability theory any event can be divided on many elementary events which take place or not take place. But in the fuzzy sets theory of L.Zadeh these elementary events are not only 0 or 1, but may be described by also with the membership function that takes values from [0,1] interval.