Method of parallel processing of multiple inference rules (R) organised in fuzzy sets or logical functions of multiple fuzzy sets comprising membership functions (I') defined in a so-called universe of discourse (U) and said inference rules (R) being configured essentially as IF-THEN rules with at least one antecedent preposition and at least one consequent implication and each preposition comprising at least one term (T) of comparison between membership functions (I') and a plurality of input data (I) and each term (T) being separated by logical operators (OL).
The method associates with the logical operators (OL) maximum and minimum operations among two or more elements and calculates exhaustively the overall degree of truth (Ω) of a rule (R) with a maximum or minimum of N partial truth levels (w).