Browsing by Subject "con- nectedness"
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(الجامعة الإسلامية - غزة, 2008)An isotonic space (X, cl) is a set X with isotonic operator cl : P(X) ! P(X) which satisfies cl(;) = ; and cl(A) cl(B) whenever A B X. Many properties which hold in topological spaces hold in isotonic spaces as well. We ...