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 bundle bundles calculus categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics complex-geometry computable-mathematics computer-science constructive constructive-mathematics cosmology definitions deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry digraphs duality elliptic-cohomology enriched fibration finite foundations functional-analysis functor galois-theory gauge-theory gebra geometric-quantization geometry graph graphs gravity 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 limit limits linear linear-algebra locale localization logic manifolds mathematics measure-theory modal-logic model model-category-theory monads monoidal monoidal-category-theory morphism motives motivic-cohomology multicategories nonassociative noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory pages pasting philosophy physics planar 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 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 topicSpam and crackpots in nCafe
- Category nLab General Discussions
- Started by RodMcGuire
- Comments 19
- Last comment by Tim_Porter
- Last Active Jan 20th 2020

- Discussion Type
- discussion topicUnderstanding the definition of lax natural transformation
- Category nLab General Discussions
- Started by heades
- Comments 3
- Last comment by heades
- Last Active Jan 17th 2020

- Discussion Type
- discussion topicMorphisms of bicategories
- Category nLab General Discussions
- Started by Keith Harbaugh
- Comments 5
- Last comment by Mike Shulman
- Last Active Jan 14th 2020

- Discussion Type
- discussion topicJoyal's CatLab
- Category nLab General Discussions
- Started by Todd_Trimble
- Comments 31
- Last comment by Richard Williamson
- Last Active Dec 18th 2019

- Discussion Type
- discussion topicDatabases,RDF,Queries and Cats
- Category nLab General Discussions
- Started by bblfish
- Comments 1
- Last comment by bblfish
- Last Active Sep 5th 2019

- Discussion Type
- discussion topicFormula Search
- Category nLab General Discussions
- Started by spitters
- Comments 4
- Last comment by spitters
- Last Active Aug 7th 2019

- Discussion Type
- discussion topicProblem with embedded parentheses in HTML link for a DOI
- Category nLab General Discussions
- Started by Keith Harbaugh
- Comments 3
- Last comment by Richard Williamson
- Last Active Aug 2nd 2019

- Discussion Type
- discussion topicApplied Category Theory on the nLab
- Category nLab General Discussions
- Started by julesh
- Comments 12
- Last comment by Urs
- Last Active Jul 18th 2019

- Discussion Type
- discussion topicStabilizer group
- Category nLab General Discussions
- Started by jesuslop
- Comments 6
- Last comment by Richard Williamson
- Last Active Jun 16th 2019

- Discussion Type
- discussion topicSome recent and coming changes for the nLab
- Category nLab General Discussions
- Started by DavidRoberts
- Comments 42
- Last comment by Richard Williamson
- Last Active Apr 27th 2019

- Discussion Type
- discussion topicDuplicate pages on hyperkähler manifolds
- Category nLab General Discussions
- Started by Maxence Mayrand
- Comments 2
- Last comment by Urs
- Last Active Apr 12th 2019

- Discussion Type
- discussion topicnlab logo
- Category nLab General Discussions
- Started by PaoloPerrone
- Comments 6
- Last comment by DavidRoberts
- Last Active Apr 7th 2019

- Discussion Type
- discussion topichomotopy theory FAQ
- Category nLab General Discussions
- Started by Dmitri Pavlov
- Comments 3
- Last comment by DavidRoberts
- Last Active Feb 11th 2019

- Discussion Type
- discussion topictable of algebraicity for model categories
- Category nLab General Discussions
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Jan 17th 2019

- Discussion Type
- discussion topiccocartesian bicategories?
- Category nLab General Discussions
- Started by Todd_Trimble
- Comments 4
- Last comment by Mike Shulman
- Last Active Dec 1st 2018

- Discussion Type
- discussion topicfinite set
- Category nLab General Discussions
- Started by stevevickers
- Comments 7
- Last comment by stevevickers
- Last Active Dec 1st 2018

- Discussion Type
- discussion topicStieltjes Integral page creation
- Category nLab General Discussions
- Started by FrancoisL
- Comments 2
- Last comment by Todd_Trimble
- Last Active Nov 29th 2018

- Discussion Type
- discussion topicnerve
- Category nLab General Discussions
- Started by Tim_Porter
- Comments 3
- Last comment by Tim_Porter
- Last Active Nov 24th 2018

- Discussion Type
- discussion topicCategories with restricted identities
- Category nLab General Discussions
- Started by porton
- Comments 10
- Last comment by Todd_Trimble
- Last Active Nov 23rd 2018

- Discussion Type
- discussion topicRequest for a personal web
- Category nLab General Discussions
- Started by raghu
- Comments 5
- Last comment by raghu
- Last Active Oct 31st 2018

- Discussion Type
- discussion topicExperiments with vectors and bivectors
- Category nLab General Discussions
- Started by Wolfhard Hoevel
- Comments 1
- Last comment by Wolfhard Hoevel
- Last Active Oct 29th 2018

- Discussion Type
- discussion topicquestions about type theory
- Category nLab General Discussions
- Started by Todd_Trimble
- Comments 45
- Last comment by atmacen
- Last Active Oct 26th 2018

- Discussion Type
- discussion topicsoft proof of the chain rule
- Category nLab General Discussions
- Started by Todd_Trimble
- Comments 11
- Last comment by Richard Williamson
- Last Active Oct 15th 2018

- Discussion Type
- discussion topicGroup names
- Category nLab General Discussions
- Started by Tim_Porter
- Comments 3
- Last comment by Tim_Porter
- Last Active Oct 3rd 2018

- Discussion Type
- discussion topiccategory of virtual representations?
- Category nLab General Discussions
- Started by Todd_Trimble
- Comments 9
- Last comment by Todd_Trimble
- Last Active Sep 17th 2018

- Discussion Type
- discussion topicGrothendiek construction
- Category nLab General Discussions
- Started by jesuslop
- Comments 2
- Last comment by David_Corfield
- Last Active Sep 15th 2018

- Discussion Type
- discussion topicseemingly blank page
- Category nLab General Discussions
- Started by Tim_Porter
- Comments 5
- Last comment by Richard Williamson
- Last Active Sep 9th 2018

- Discussion Type
- discussion topicSome thoughts on the Poincaré conjecture for knots
- Category nLab General Discussions
- Started by Richard Williamson
- Comments 11
- Last comment by Richard Williamson
- Last Active Aug 27th 2018

- Discussion Type
- discussion topicmodule category, little checking
- Category nLab General Discussions
- Started by jesuslop
- Comments 2
- Last comment by David_Corfield
- Last Active Aug 18th 2018

- Discussion Type
- discussion topicError in "geometric quantization"
- Category nLab General Discussions
- Started by Antoine PL
- Comments 7
- Last comment by Antoine PL
- Last Active Aug 17th 2018