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Niech TD = (U, C, D), to tablica decyzyjna, gdzie C={a, b, c, d, e} to zbiór a...

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Niech TD = (U, C, D), to tablica decyzyjna, gdzie

C={a, b, c, d, e} to zbiór atrybutów warunkowych, a D={f} to atrybut decyzyjny. 

Niech rdzeń zbioru atrybutów C to b (Core(C)={b}).

Wówczas

reduktem nie może być zbiór: 

13%
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