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 topicFinSet as a topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 24th 2010

- Discussion Type
- discussion topicObject classifiers for Top
- Category Latest Changes
- Started by David_Corfield
- Comments 4
- Last comment by Urs
- Last Active Feb 24th 2010

- Discussion Type
- discussion topicderived loop space and infinitesimal paths
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 23rd 2010

- Discussion Type
- discussion topicglobal section
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 23rd 2010

- Discussion Type
- discussion topicformal dg-algebra
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Feb 22nd 2010

- Discussion Type
- discussion topicBott periodicity theorem
- Category Latest Changes
- Started by zskoda
- Comments 1
- Last comment by zskoda
- Last Active Feb 22nd 2010

- Discussion Type
- discussion topicitex2MML Updates
- Category Lab Elf News
- Started by Andrew Stacey
- Comments 4
- Last comment by Andrew Stacey
- Last Active Feb 22nd 2010

- Discussion Type
- discussion topicQuestion: components of a natural transformation
- Category Mathematics, Physics & Philosophy
- Started by Eric
- Comments 9
- Last comment by SridharRamesh
- Last Active Feb 21st 2010

- Discussion Type
- discussion topicNatural transformations
- Category Latest Changes
- Started by SridharRamesh
- Comments 9
- Last comment by SridharRamesh
- Last Active Feb 21st 2010

- Discussion Type
- discussion topicFirefox XML Parsing Error: not well-formed
- Category nLab Technical Matters
- Started by Jon_Phillips
- Comments 7
- Last comment by Andrew Stacey
- Last Active Feb 20th 2010

- Discussion Type
- discussion topicstructures in a gros (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Feb 19th 2010

- Discussion Type
- discussion topiclocally contractible (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Feb 19th 2010

- Discussion Type
- discussion topicTim : New entries
- Category Latest Changes
- Started by Tim_Porter
- Comments 1
- Last comment by Tim_Porter
- Last Active Feb 19th 2010

- Discussion Type
- discussion topicdecalage
- Category Latest Changes
- Started by Tim_Porter
- Comments 14
- Last comment by Tim_Porter
- Last Active Feb 19th 2010

- Discussion Type
- discussion topicphysicscontents
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by DavidRoberts
- Last Active Feb 18th 2010

- Discussion Type
- discussion topicderived category
- Category Mathematics, Physics & Philosophy
- Started by zskoda
- Comments 31
- Last comment by zskoda
- Last Active Feb 18th 2010

- Discussion Type
- discussion topicnc diff operators
- Category Latest Changes
- Started by zskoda
- Comments 1
- Last comment by zskoda
- Last Active Feb 18th 2010

- Discussion Type
- discussion topicbisimplicial object
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 18th 2010

- Discussion Type
- discussion topicA-oo category
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 17th 2010

- Discussion Type
- discussion topicrelatin SSet-Joyal to SSet-Quillen
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 17th 2010

- Discussion Type
- discussion topic(oo,1)Cat
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 16th 2010

- Discussion Type
- discussion topicSVGs at Frolicher spaces
- Category Latest Changes
- Started by Andrew Stacey
- Comments 7
- Last comment by Eric
- Last Active Feb 16th 2010

- Discussion Type
- discussion topicholonomic quantum fields
- Category Latest Changes
- Started by zskoda
- Comments 5
- Last comment by zskoda
- Last Active Feb 15th 2010

- Discussion Type
- discussion topichomotopy groups in an (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 15th 2010

- Discussion Type
- discussion topic(oo,1)-cat of (oo,1)-cats
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 15th 2010

- Discussion Type
- discussion topicall (oo,1)-cats from DW-localization
- Category Latest Changes
- Started by Urs
- Comments 5
- Last comment by Urs
- Last Active Feb 15th 2010

- Discussion Type
- discussion topichomotopy coherent diagram
- Category Latest Changes
- Started by Tim_Porter
- Comments 25
- Last comment by Tim_Porter
- Last Active Feb 15th 2010

- Discussion Type
- discussion topiclocally contractible (oo,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 15th 2010

- Discussion Type
- discussion topicGrothendieck no longer wants SGA republished and has asked Laszlo to take down SGA4
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 17
- Last comment by Tim_Porter
- Last Active Feb 14th 2010

- Discussion Type
- discussion topicHelp!
- Category Mathematics, Physics & Philosophy
- Started by Andrew Stacey
- Comments 11
- Last comment by Andrew Stacey
- Last Active Feb 12th 2010

- Discussion Type
- discussion topicproblems with TOC inclusion
- Category nLab Technical Matters
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active Feb 12th 2010

- Discussion Type
- discussion topic(n,1)-topos
- Category Latest Changes
- Started by Urs
- Comments 3
- Last comment by Urs
- Last Active Feb 12th 2010

- Discussion Type
- discussion topicmath commons licence
- Category Mathematics, Physics & Philosophy
- Started by zskoda
- Comments 3
- Last comment by zskoda
- Last Active Feb 11th 2010

- Discussion Type
- discussion topicGalois theory/bar path oo-groupoid of an oo-stack
- Category Latest Changes
- Started by Urs
- Comments 53
- Last comment by zskoda
- Last Active Feb 11th 2010

- Discussion Type
- discussion topicintegration as a Kan extension
- Category Mathematics, Physics & Philosophy
- Started by domenico_fiorenza
- Comments 11
- Last comment by Urs
- Last Active Feb 10th 2010

- Discussion Type
- discussion topicHow to draw arrows in the SVG editor
- Category Diagrams
- Started by Harry Gindi
- Comments 4
- Last comment by Harry Gindi
- Last Active Feb 10th 2010

- Discussion Type
- discussion topicGeometric morphisms of sheaf topoi
- Category Latest Changes
- Started by TobyBartels
- Comments 3
- Last comment by TobyBartels
- Last Active Feb 9th 2010

- Discussion Type
- discussion topicdirect image
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 9th 2010

- Discussion Type
- discussion topicMenagerie
- Category Latest Changes
- Started by Tim_Porter
- Comments 8
- Last comment by Andrew Stacey
- Last Active Feb 9th 2010

- Discussion Type
- discussion topicSVG Editor
- Category Latest Changes
- Started by Andrew Stacey
- Comments 1
- Last comment by Andrew Stacey
- Last Active Feb 9th 2010

- Discussion Type
- discussion topicglobal sections
- Category Latest Changes
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Feb 9th 2010

- Discussion Type
- discussion topic(locally) constant n-stacks
- Category Latest Changes
- Started by Urs
- Comments 8
- Last comment by Urs
- Last Active Feb 8th 2010

- Discussion Type
- discussion topiccurvature
- Category Latest Changes
- Started by zskoda
- Comments 4
- Last comment by Urs
- Last Active Feb 8th 2010

- Discussion Type
- discussion topicQuestion from Todd.
- Category Latest Changes
- Started by TobyBartels
- Comments 4
- Last comment by Urs
- Last Active Feb 8th 2010

- Discussion Type
- discussion topicHorns
- Category Latest Changes
- Started by Tim_Porter
- Comments 2
- Last comment by Urs
- Last Active Feb 8th 2010

- Discussion Type
- discussion topicJacques has done it again!
- Category Diagrams
- Started by Andrew Stacey
- Comments 1
- Last comment by Andrew Stacey
- Last Active Feb 8th 2010

- Discussion Type
- discussion topicProfinite Homotopy Theory
- Category Latest Changes
- Started by Tim_Porter
- Comments 3
- Last comment by Tim_Porter
- Last Active Feb 8th 2010

- Discussion Type
- discussion topiccohomology
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 5th 2010

- Discussion Type
- discussion topicVocabulary words from Stone Spaces, II.1.3
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Feb 5th 2010

- Discussion Type
- discussion topicfundamental group of a topos
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 5th 2010

- Discussion Type
- discussion topicn-Hom-categories
- Category Latest Changes
- Started by TobyBartels
- Comments 6
- Last comment by TobyBartels
- Last Active Feb 5th 2010

- Discussion Type
- discussion topicgauge fixing
- Category Latest Changes
- Started by domenico_fiorenza
- Comments 11
- Last comment by TobyBartels
- Last Active Feb 4th 2010

- Discussion Type
- discussion topiclocal system
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 4th 2010

- Discussion Type
- discussion topicRepresentations and intertwiners
- Category Latest Changes
- Started by TobyBartels
- Comments 12
- Last comment by Urs
- Last Active Feb 4th 2010

- Discussion Type
- discussion topicmaterial-structural adjunction
- Category Latest Changes
- Started by Mike Shulman
- Comments 2
- Last comment by TobyBartels
- Last Active Feb 3rd 2010

- Discussion Type
- discussion topicSize issues
- Category Latest Changes
- Started by TobyBartels
- Comments 4
- Last comment by TobyBartels
- Last Active Feb 2nd 2010

- Discussion Type
- discussion topicCodifferential
- Category Latest Changes
- Started by Tim_Porter
- Comments 4
- Last comment by zskoda
- Last Active Feb 2nd 2010

- Discussion Type
- discussion topicEssential suprema
- Category Latest Changes
- Started by TobyBartels
- Comments 1
- Last comment by TobyBartels
- Last Active Feb 2nd 2010

- Discussion Type
- discussion topicCoo-ring
- Category Latest Changes
- Started by Urs
- Comments 1
- Last comment by Urs
- Last Active Feb 2nd 2010

- Discussion Type
- discussion topicsSet-categories and quasi-categories
- Category Latest Changes
- Started by Urs
- Comments 13
- Last comment by Tim_Porter
- Last Active Feb 2nd 2010