Union of Classes

(Unión des Clases), the first large-scale Spanish organization of workers of various trades. Founded in Barcelona in 1854, the union consisted of the principal organizations of textile workers of Catalonia. A government declaration of June 2, 1855, to disband the Union of Classes led to the first general political strike.

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Given the set of criteria P [subset or equal to] C, the inclusion of object x [member of] U in the upward union of classes [Cl.sup..[greater than or equal to].sub.t], t = 2, ..., n, creates an inconsistency in the dominance principle if one of the following conditions holds:

For example, if "bridge y dominates bridge x", with the latter belonging to the ascending union of classes [Cl.sub.3.sup.[greater than or equal to]] of bridges with not less than urgent intervention, it is possible that y belongs to the ascending union of classes [Cl.sub.3.sup.[greater than or equal to]] too, if with some ambiguity.

For a given upward or downward union of classes, [Cl.sub.t.sup.[greater than or equal to]] or [Cl.sub.S.sup.[less than or equal to]], the decision rules induced under a hypothesis that objects belonging to [P.bar]([Cl.sup.[greater than or equal to].sub.t]) or [P.bar]([Cl.sup.[less than or equal to].sub.S])are positive and all the others negative, suggest an assignment to "class [Cl.sub.t] or better", or to "class [Cl.sub.S] or worse", respectively.

Dominance-based rough set approach to network bridge management/Dominuojanciu apytiksliu aibiu metodo taikymas tiltu tinklo valdymui/Uz dominejosa stavokla aptuvena novertejuma metodes balstita tiklveida pieeja tiltu kopas parvaldibai/Dominantsuspohine ligikaudne lahenemine teedevorgu sildade hooldusel