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    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeApr 10th 2017
    • (edited Apr 10th 2017)

    created for completeness: cofinite subset, cofinite topology

    • CommentRowNumber2.
    • CommentAuthorzskoda
    • CommentTimeMay 21st 2017

    I have added the definition of a cofinite subset of a (pre)ordered set.

    A preordered set (Λ,)(\Lambda,\leq) is cofinite or closure finite if for every λΛ\lambda\in\Lambda the set of all predecessors of λ\lambda is finite.