The Explanative and Procedural Semantics of FLL

FLL(Fuzzy Logic Language) is a synthesis fuzzy language designed for NSA(Natural Science Foundation) Project. It has the ability of logic reasoning, fuzzy logic reasoning,weighted fuzzy logic reasoning and default reasoning. In this article, we clarify the explanative semantics of FLL and put forward the executive mode through the procedural semantics. All these become the theoretical foundation of implement model of FLL.