Let is a complete lattice. I will call a filter base a nonempty subset of such that . I will
Continue readingOpen problem: co-separability of filter objects
Conjecture Let and are filters on a set . Then [corrected] This conjecture can be equivalently reformulated in terms of
Continue readingOpen problem: Pseudodifference of filters
Let is a set. A filter (on ) is a non-empty set of subsets of such that . Note that
Continue readingExposition: Complementive filters are complete lattice
(In a past version of this article I erroneously concluded that our main conjecture follows from join-closedness of .) Let
Continue readingFilter objects
Let is a set. A filter (on ) is by definition a non-empty set of subsets of such that .
Continue readingPrincipal filters are center – solved
I have proved this conjecture: Theorem 1 If is the set of filter objects on a set then is the
Continue readingAre principal filters the center of the lattice of filters?
This conjecture has a seemingly trivial case when is a principal filter. When I attempted to prove this seemingly trivial
Continue readingCollaborative math research – a real example
There were much talking about writing math research articles collaboratively but no real action. I present probably the first real
Continue readingComplete lattice generated by a partitioning – finite meets
I conjectured certain formula for the complete lattice generated by a strong partitioning of an element of complete lattice. Now
Continue readingComplete lattice generated by a partitioning of a lattice element
In this post I defined strong partitioning of an element of a complete lattice. For me it was seeming obvious
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