On a strengthening connective for flexible database querying

In most of query languages, conjunctive and disjunctive combinations of conditions remain the usual way for aggregation. Fuzzy query languages also offer trade-off operators, such as means in order to compensate between elementary conditions. In this paper, we investigate a new type of condition basically founded on the interaction between two predicates, thus enriching the panoply of tools the user is provided with and enhancing the power of query languages.