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Jul
10
accepted Another way to express certain filter
Jul
7
accepted A real statistic for pay-per-click advertisement
Jul
7
asked A real statistic for pay-per-click advertisement
Jun
28
comment Duals of filters, an explicit formula for meet?
After some thinking, I conclude that it seems that there is no explicit formula in this case
Jun
27
comment Duals of filters, an explicit formula for meet?
@AsafKaragila You've misunderstood. Ideal is a filter in dual order. But I take both dual order (that is replacing every element of the filter with its dual) and complement of the filter (considered as a set)
Jun
27
asked Duals of filters, an explicit formula for meet?
Jun
23
revised Representation of an $n$-ary relation as a function - terminology
typo in title
Jun
23
asked Representation of an $n$-ary relation as a function - terminology
Jun
18
accepted Help with defining binary relation image in ZFC
Jun
18
asked Help with defining binary relation image in ZFC
Jun
16
comment Characterization of monovalued functions
For every $x$ there are no more than one $y$ such that $(x,y)\in f$
Jun
16
comment Characterization of monovalued functions
$f=\varnothing$ is a function. I define function as a monovalued (including zero-valued) binary relation
Jun
16
comment Characterization of monovalued functions
I did a stupid thing: I got a 100 points bounty for this easy question. I've solved it myself soon after this. For a solution consider $G=\{\{(a;y)\};\{(b;y)\}\}$ for $a\ne b$
Jun
15
awarded  Custodian
Jun
15
reviewed Approve Two definitions of a monovalued morphism
Jun
15
asked Generalizing a theorem about filters on a boolean lattice
Jun
15
accepted Labeled commutative diagram
Jun
14
comment Labeled commutative diagram
Another question is how to paint such a diagram. For every node we need both an object and a label. Two symbols can't be in one place
Jun
14
comment Category theory: Enough that polygonal diagrams commute
@Unit "pentagonal" was a typo. Corrected
Jun
14
revised Category theory: Enough that polygonal diagrams commute
typo