Ivica Marinová

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For every central element z of a lattice effect algebra E, the interval [0, z] with the ⊕ operation inherited from E and the new unity z is a lattice effect algebra in its own right. We show connections between blocks, sharp elements and central elements of [0, z] and those of E. We prove that except for central elements, the intervals [0, z] are closed(More)
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