## MV-algebras with internal states and probabilistic fuzzy logics.(English)Zbl 1185.06007

Summary: We enlarge the language of MV-algebras by a unary operation $$\sigma$$ equationally described so as to preserve the basic properties of a state in its original meaning. The resulting class of algebras will be called MV-algebras with internal state (or SMV-algebras for short). After discussing some basic algebraic properties of SMV-algebras, we apply them to the study of the coherence problem for rational assessments on many-valued events. Then we propose an algebraic treatment of the Lebesgue integral and we show that internal states defined on a divisible MV$$_{\Delta }$$-algebra can be represented by means of this more general notion of integral.

### MSC:

 06D35 MV-algebras 03B52 Fuzzy logic; logic of vagueness 28A99 Classical measure theory
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### References:

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