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An amateur general topology researcher.


Sep
24
comment Equality of two expressions describing a filter
@AndreasBlass: Thanks, it was my error. Now have been corrected
Sep
24
revised Equality of two expressions describing a filter
U -> W; edited tags
Sep
24
comment Equality of two expressions describing a filter
@StevenStadnicki: It seems that $T$ does not witness that $V$ can't be in (2).
Sep
24
comment Equality of two expressions describing a filter
@TomCruise: No, I have edited the question, and now 2. means the filter(?) on the boolean lattice $U$ consisting of all elements $L\in U$ such that every $X$ majorating $L$ is an element of the filter $f$
Sep
24
revised Equality of two expressions describing a filter
clarity
Sep
24
comment Equality of two expressions describing a filter
@TomCruise: Yes, I was wrong. I will edit the question.
Sep
24
revised Equality of two expressions describing a filter
Corrected error: sets -> boolean lattices
Sep
24
comment Equality of two expressions describing a filter
@TomCruise: I don't understand your question. By $Y\in U$ I mean that $Y$ is an elemetn of the set $U$.
Sep
24
awarded  Autobiographer
Sep
24
asked Equality of two expressions describing a filter
Sep
24
comment Compositions of filters on finite unions of Cartesian products
I thought (without writing a detailed proof), that this my question is equivalent to an other open problem I work about. Now I see my problem does not follow trivially from this question. Because my open problem is more hard, I thought this question is also hard and stupidly overlooked a trivial solution. It is one of my biggest mistakes. Thanks anyway and get my bounty
Sep
24
accepted Compositions of filters on finite unions of Cartesian products
Sep
22
revised Order on the set of partitions (terminology)
edited tags
Sep
21
asked Order on the set of partitions (terminology)
Sep
18
revised Compositions of filters on finite unions of Cartesian products
typo
Sep
17
revised Compositions of filters on finite unions of Cartesian products
added 123 characters in body
Sep
16
asked Compositions of filters on finite unions of Cartesian products
Sep
14
revised Another conjecture about filters and cartesian products
deleted 1718 characters in body
Sep
14
comment Another conjecture about filters and cartesian products
In mathematics21.org/binaries/funcoids-are-filters.pdf I have shown that $\Gamma$ in both my questions are the same. So the answer to this question is: yes, it can be proved
Sep
14
answered A conjecture about filters and finite unions of cartesian products