3,174 reputation
1954
bio website
location Germany
age 48
visits member for 4 years, 4 months
seen yesterday

My interests:

  • abstract structures
    (e.g. graphs, groups, polytopes, spaces, ...)

    in the course of this

  • category theory

  • model theory

  • presentations and representations
    (e.g. of abstract structures by or inside other abstract structures)

    next to this

  • philosophy
    (esp. of mathematics, science, and mind)

    especially concerned with

  • atomism
    (i.e. reductionistic or other theories referring to some kind of "atoms")

  • their refutations


Apr
14
awarded  Notable Question
Apr
10
awarded  Popular Question
Apr
3
awarded  Popular Question
Mar
21
awarded  Popular Question
Mar
15
awarded  Popular Question
Mar
10
asked Smallest distribution of points with genuinely different clusterings
Mar
2
revised Expressive power of first-order category theory
added 59 characters in body
Feb
28
comment Expressive power of first-order category theory
I mean the category of graphs, for which the quoted characterization of connected graphs is true. (To be honest, I am not sure if this is the category with or without loops.)
Feb
27
revised Expressive power of first-order category theory
deleted 5 characters in body
Feb
27
asked Expressive power of first-order category theory
Feb
18
revised Natural constructions (not depending on parameters)
edited tags
Feb
18
comment Natural constructions (not depending on parameters)
@Pete: I don't want anyone to create some mathematics - I would be perfectly happy with a reference.
Feb
18
comment Natural constructions (not depending on parameters)
@Pete: I will do my best to digest this "stony" answer which I really do appreciate. (What I don't understand immediately: Why you consider my idea very soft. Soft - OK. But very soft?)
Feb
18
comment Natural constructions (not depending on parameters)
@Andy: And please give me a slight hint: Is my question inappropriate because it is trivial or because it is nonsensical? (I cannot guess from the close votes, but maybe I would learn something from this information.)
Feb
18
comment Natural constructions (not depending on parameters)
@Andy: You are demanding a lot of patience. Experience taught me that when you don't get an answer at MSE - or even a comment - after a couple of hours, you will only get one by sheer accident.
Feb
18
revised Natural constructions (not depending on parameters)
edited body
Feb
18
revised Natural constructions (not depending on parameters)
added 12 characters in body
Feb
18
revised Natural constructions (not depending on parameters)
added 175 characters in body
Feb
18
asked Natural constructions (not depending on parameters)
Feb
17
accepted Non-constructive proofs of decidability?