Not signed in (Sign In)

Not signed in

Want to take part in these discussions? Sign in if you have an account, or apply for one below

  • Sign in using OpenID

Site Tag Cloud

2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry book bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration foundation foundations functional-analysis functor gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck group group-theory harmonic-analysis higher higher-algebra higher-category-theory higher-differential-geometry higher-geometry higher-lie-theory higher-topos-theory homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nlab noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics pro-object probability probability-theory quantization quantum quantum-field quantum-field-theory quantum-mechanics quantum-physics quantum-theory question representation representation-theory riemannian-geometry scheme schemes set set-theory sheaf simplicial space spin-geometry stable-homotopy-theory stack string string-theory superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory tqft type type-theory universal variational-calculus

Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

Welcome to nForum
If you want to take part in these discussions either sign in now (if you have an account), apply for one now (if you don't).

nLab > Latest Changes: ultrafilter

Bottom of Page

1 to 7 of 7

  1.  
    • CommentRowNumber1.
    • CommentAuthorTodd_Trimble
    • CommentTimeNov 26th 2010

    I added a bit to the section on the ultrafilter monad in ultrafilter. This could stand to be fleshed out still more. The immediate reason for my editing here was to put down the notion of “compact Hausdorff object” (which is used in a remark at BoolAlg).

    • CommentRowNumber2.
    • CommentAuthorTobyBartels
    • CommentTimeNov 27th 2010

    Good!

    It works better to link to compact Hausdorff object and then put a redirect from that to ultrafilter than to link to ultrafilter while saying ’compact Hausdorff object’. Someday, there might be a separate page compact Hausdorff object, and we want the links to continue to the right place.

    • CommentRowNumber3.
    • CommentAuthorDmitri Pavlov
    • CommentTimeAug 28th 2018

    Added a new section about Garner’s theorem on ultrafilters as presheaves.

    diff, v37, current

  4. Hi Dmitri, if you like, feel free to leave the citation syntax like you have it. I can try to implement it in the course of the next few days.

    • CommentRowNumber5.
    • CommentAuthorDavid_Corfield
    • CommentTimeJul 1st 2020

    Added the definition of the Blass category of ultrafilters.

    diff, v41, current

    • CommentRowNumber6.
    • CommentAuthorDavid_Corfield
    • CommentTimeJan 3rd 2021

    The link to Lawvere’s post to the categories list is dead, so I added

    I imagine this is a problem for all references to the list. I’ve left the original link in case there’s a global replacement solution, rather than one-by-one changes to the relevant monthly folder.

    diff, v42, current

    • CommentRowNumber7.
    • CommentAuthorDavidRoberts
    • CommentTimeJan 3rd 2021

    Anything linking to the period after the curated archives is not available, except through the efforts of some people who now have the entire list extracted and stored on GitHub, but not in a use-friendly format.

1 to 7 of 7

  1.