Not signed in (Sign In)

A discussion forum about contributions to the nLab wiki and related areas of mathematics, physics, and philosophy.

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

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 k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure-theory modal modal-logic model model-category-theory monad monads monoidal monoidal-category-theory morphism motives motivic-cohomology nforum 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 sheaves 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.

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).

- Discussion Type
- discussion topicsmall presheaves
- Category Latest Changes
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Dec 2nd 2009

- Discussion Type
- discussion topicdirected colimit
- Category Latest Changes
- Started by Urs
- Comments 13
- Last comment by zskoda
- Last Active Nov 30th 2009

- Discussion Type
- discussion topicthis and that
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 30th 2009

- Discussion Type
- discussion topicDold-Kan correspondence
- Category Latest Changes
- Started by John Baez
- Comments 2
- Last comment by Urs
- Last Active Nov 29th 2009

- Discussion Type
- discussion topicquestion at [[CommCoalg]]
- Category Latest Changes
- Started by Todd_Trimble
- Comments 3
- Last comment by Todd_Trimble
- Last Active Nov 29th 2009

- Discussion Type
- discussion topicMore on algebraic categories
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 28th 2009

- Discussion Type
- discussion topicAm I the only one who doesn't like the term 'comonoidal functor'?
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 28th 2009

- Discussion Type
- discussion topicWarning: Don't assume redirects!
- Category Mathematics, Physics & Philosophy
- Started by TobyBartels
- Comments 11
- Last comment by TobyBartels
- Last Active Nov 26th 2009

- Discussion Type
- discussion topicskeletality and uniqueness
- Category Latest Changes
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Nov 25th 2009

- Discussion Type
- discussion topic[[category of cocommutative coalgebras]]
- Category Latest Changes
- Started by Todd_Trimble
- Comments 23
- Last comment by Mike Shulman
- Last Active Nov 25th 2009

- Discussion Type
- discussion topicZen Garden
- Category Latest Changes
- Started by Andrew Stacey
- Comments 29
- Last comment by TobyBartels
- Last Active Nov 24th 2009

- Discussion Type
- discussion topicshifted tangent bundle
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by TobyBartels
- Last Active Nov 24th 2009

- Discussion Type
- discussion topicConversations …
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 24th 2009

- Discussion Type
- discussion topicWhich fonts do I need for the nLab?
- Category Mathematics, Physics & Philosophy
- Started by martin1456
- Comments 7
- Last comment by TobyBartels
- Last Active Nov 23rd 2009

- Discussion Type
- discussion topicEtymology and pronunciation for ‘ionad’
- Category Latest Changes
- Started by TobyBartels
- Comments 9
- Last comment by TobyBartels
- Last Active Nov 23rd 2009

- Discussion Type
- discussion topicLab crashed
- Category nLab Technical Matters
- Started by TobyBartels
- Comments 4
- Last comment by TobyBartels
- Last Active Nov 23rd 2009

- Discussion Type
- discussion topiclocal object
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Nov 23rd 2009

- Discussion Type
- discussion topicGreg Egan's Euclidean geometry
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 22nd 2009

- Discussion Type
- discussion topicLevels of Access
- Category nLab Organisation
- Started by Andrew Stacey
- Comments 21
- Last comment by Andrew Stacey
- Last Active Nov 21st 2009

- Discussion Type
- discussion topicn-IRC?
- Category n-Forum
- Started by Harry Gindi
- Comments 12
- Last comment by Andrew Stacey
- Last Active Nov 21st 2009

- Discussion Type
- discussion topiccohomology
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by zskoda
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicBackups
- Category nLab Organisation
- Started by Andrew Stacey
- Comments 8
- Last comment by Andrew Stacey
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicQuery at [[2-pullback]]
- Category Latest Changes
- Started by TobyBartels
- Comments 12
- Last comment by zskoda
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicSomething to warm our hearts
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 1
- Last comment by David_Corfield
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicFull iamge
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicTwo new articles
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 20th 2009

- Discussion Type
- discussion topicnegative thinking
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 19th 2009

- Discussion Type
- discussion topicNew article: TAC
- Category Latest Changes
- Started by TobyBartels
- Comments 3
- Last comment by Urs
- Last Active Nov 19th 2009

- Discussion Type
- discussion topicGelfand-Neumark
- Category Latest Changes
- Started by David_Corfield
- Comments 14
- Last comment by zskoda
- Last Active Nov 19th 2009

- Discussion Type
- discussion topicRequest for references at commutative algebraic theory
- Category Latest Changes
- Started by Andrew Stacey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicDanger Todd Trimble!
- Category Latest Changes
- Started by TobyBartels
- Comments 2
- Last comment by Todd_Trimble
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicmodel structure on simplicial presheaves and related
- Category Latest Changes
- Started by Urs
- Comments 13
- Last comment by Mike Shulman
- Last Active Nov 18th 2009

- Discussion Type
- discussion topicCan I has time of last edit plz?
- Category n-Forum
- Started by TobyBartels
- Comments 15
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicAuthentication problem
- Category n-Forum
- Started by Mike Shulman
- Comments 13
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicCograph
- Category Latest Changes
- Started by Eric
- Comments 45
- Last comment by Eric
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicdouble nerve
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicmodel structure on homotopical presheaves
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicn-symplectic manifold
- Category Latest Changes
- Started by Urs
- Comments 6
- Last comment by Urs
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicionads
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicRearranged higher category theory contents
- Category Latest Changes
- Started by TobyBartels
- Comments 5
- Last comment by TobyBartels
- Last Active Nov 17th 2009

- Discussion Type
- discussion topicLambek's theorem; natural numbers
- Category Latest Changes
- Started by Todd_Trimble
- Comments 1
- Last comment by Todd_Trimble
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicRSS/Atom Feeds
- Category n-Forum
- Started by Andrew Stacey
- Comments 17
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicThe remains of JA
- Category Latest Changes
- Started by TobyBartels
- Comments 3
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicLevi-Civita connection
- Category Latest Changes
- Started by amathew
- Comments 2
- Last comment by Urs
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicdiagrammatic order
- Category Latest Changes
- Started by Mike Shulman
- Comments 5
- Last comment by Mike Shulman
- Last Active Nov 16th 2009

- Discussion Type
- discussion topicGeneralised smooth algebras
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicDold fibration
- Category Latest Changes
- Started by Guest
- Comments 9
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicsuspension object
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicsw double arrow
- Category Diagrams
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicfibration of bigroupoids
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 13th 2009

- Discussion Type
- discussion topicKlein-2-geometry links
- Category Latest Changes
- Started by Guest
- Comments 2
- Last comment by David_Corfield
- Last Active Nov 12th 2009

- Discussion Type
- discussion topicE-k-operad
- Category Latest Changes
- Started by Urs
- Comments 11
- Last comment by Mike Shulman
- Last Active Nov 12th 2009

- Discussion Type
- discussion topiccochains on simplicial sets
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Eric
- Last Active Nov 11th 2009

- Discussion Type
- discussion topiccategorification
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicEilenberg-Zilber operad
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicdirectory of personal webs
- Category Latest Changes
- Started by Andrew Stacey
- Comments 6
- Last comment by Eric
- Last Active Nov 11th 2009

- Discussion Type
- discussion topicbraided monoidal 2-categories
- Category Latest Changes
- Started by bwebster
- Comments 2
- Last comment by Urs
- Last Active Nov 10th 2009

- Discussion Type
- discussion topicthin homotopy
- Category Latest Changes
- Started by Guest
- Comments 2
- Last comment by Urs
- Last Active Nov 10th 2009

- Discussion Type
- discussion topicanafunctors between fibres of a Grothendieck fibration
- Category Latest Changes
- Started by Guest
- Comments 1
- Last comment by Guest
- Last Active Nov 9th 2009

- Discussion Type
- discussion topicSandbox
- Category Latest Changes
- Started by Andrew Stacey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Nov 9th 2009