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For questions about simplicial sets, simplicial (co)algebras and simplicial objects in other categories; geometric realization, Dold-Kan correspondence, simplicial resolutions etc.
1
vote
1
answer
332
views
The boundary map of Kan simplicial sets
I don't know whether or not the following is a research level question,
but since it is concerned with simplicial sets and since they
are very popular these days, I think this is the right place to as …
1
vote
0
answers
204
views
Proof for a simplicial morphism
Sorry for the title but I can't come up with another one...
...
Suppose X and Y are simplicial sets
and $f : X \rightarrow Y$ is a map
such that:
1.) f maps dimensions the right way,
that is f …