![](/files/happy5.png)
Several ways to apply a (multivalued) multiargument function to a family of filters
Problem Let
be an indexed family of filters on sets. Which of the below items are always pairwise equal?
![$ \mathcal{X} $](/files/tex/dcd7ae9cf0009f744cb554a2a549667e2a95aed0.png)
1. The funcoid corresponding to this function (considered as a single argument function on indexed families) applied to the reloidal product of filters .
2. The funcoid corresponding to this function (considered as a single argument function on indexed families) applied to the starred reloidal product of filters .
3. .
Bibliography
See Algebraic General Topology for definitions of used concepts.
* indicates original appearance(s) of problem.
The error was more severe
On January 15th, 2020 porton says:
The first item of the problem was entirely wrong. I removed it.
-- Victor Porton - http://www.mathematics21.org
There was an error in the problem statement
I did an error in the problem statement (corrected). We need to consider the upgraded staroid, not just staroid.
-- Victor Porton - http://www.mathematics21.org