The proposition that apple red fruit false
C++ Neural Networks and Fuzzy Logic:C++ and Object Orientation
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On the other hand, there are statements you cannot make with such certainty. You may be saying that you think it will rain today. If pressed further, you may be able to say with a degree of certainty in your statement that it will rain today. Your level of certainty, however, is about 0.8, rather than 1. This type of situation is what fuzzy logic was
developed to model. Fuzzy logic deals with propositions that can be true to a certain degree—somewhere from 0 to 1. Therefore, a proposition’s truth value indicates the degree of certainty about which the proposition is true. The degree of certainity sounds like a probability (perhaps subjective probability), but it is not quite the same. Probabilities for mutually exclusive events cannot add up to more than 1, but their fuzzy values may.
Suppose that the probability of a cup of coffee being hot is 0.8 and the probability of the
