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By means of semi-pre-open L-sets and their inequality, the new countable SP-compactness and SP-Lindelöf property are introduced in L-topological spaces, where L is a complete De Morgan algebra. The new notions do not depend on the structure of basis lattice L which does not require any distributivity. These new notions are good extensions and have many characterizations as well, when L is completely...
By means of semi-pre-open L-sets and their inequality, the new countable SP-compactness and SP-Lindelöf property are introduced in L-topological spaces, where L is a complete De Morgan algebra. The new notions do not depend on the structure of basis lattice L which does not require any distributivity. These new notions are good extensions and have many characterizations as well, when L is completely...
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