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Density of the lattice ofmth degrees of conditional problems

โœ Scribed by I. Z. Vasil'eva


Publisher
SP MAIK Nauka/Interperiodica
Year
1996
Tongue
English
Weight
161 KB
Volume
37
Category
Article
ISSN
0037-4466

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We consider some nonprincipal filters of the Medvedev lattice. We prove that the filter generated by the nonzero closed degrees of difficulty is not principal and we compare this filter, with respect to inclusion, with some other filters of the lattice. All the filters considered in this paper are d