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pro vyhledávání: '"Markiyan Simkiv"'
Autor:
Taras Banakh, Markiyan Simkiv, Alex Ravsky, Ostap Chervak, Tetyana Martynyuk, Maksym Pylypovych
Publikováno v:
Topological Algebra and its Applications, Vol 6, Iss 1, Pp 1-25 (2018)
Generalizing the famous 14-set closure-complement Theorem of Kuratowski from 1922, we prove that for a set $X$ endowed with $n$ pairwise comparable topologies $\tau_1\subset\dots\subset\tau_n$, by repeated application of the operations of complement