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Dla systemu informacyjnego SI = (U, A), A = {a, b, c, d, e}, zbiór reduktów to ...

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Dla systemu informacyjnego SI = (U, A), A = {a,

b, c, d, e}, zbiór reduktów to

Read(A) = {{a, b, c}, {b, c, d}, {a, d, e}}.

Wówczas

rdzeń zbioru atrybutów A to:

Core(A) = {a, b, c, d, e}

Core(A) =

✅

Core(A) = {a, e}

Core(A) = {b}

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