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-categories 2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry bundles calculus categories category category-theory chern-weil-theory cohesion cohesive-homotopy-theory cohesive-homotopy-type-theory cohomology colimits combinatorics comma complex-geometry computable-mathematics computer-science constructive cosmology deformation-theory descent diagrams differential differential-cohomology differential-equations differential-geometry differential-topology digraphs duality education elliptic-cohomology enriched fibration finite foundations functional-analysis functor galois-theory gauge-theory gebra geometric-quantization geometry graph graphs gravity grothendieck 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 infinity integration integration-theory k-theory lie lie-theory limit limits linear linear-algebra locale localization logic mathematics measure-theory modal-logic model model-category-theory monoidal monoidal-category-theory morphism motives motivic-cohomology multicategories nonassociative noncommutative noncommutative-geometry number-theory of operads operator operator-algebra order-theory 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 string string-theory subobject 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 topicProjection & Section are duals of each other.
- Category Mathematics, Physics & Philosophy
- Started by Murat_Aygen
- Comments 1
- Last comment by Murat_Aygen
- Last Active Feb 11th 2019

- Discussion Type
- discussion topicDeligne-Lurie completeness theorem
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 1
- Last comment by David_Corfield
- Last Active Feb 10th 2019

- Discussion Type
- discussion topicChern classes of linear representations
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 56
- Last comment by Urs
- Last Active Feb 3rd 2019

- Discussion Type
- discussion topicEnriched local cartesian closure
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 2
- Last comment by Mike Shulman
- Last Active Jan 29th 2019

- Discussion Type
- discussion topicPath spaces of higher inductive types in HoTT
- Category Preprints & Publications
- Started by Alizter
- Comments 10
- Last comment by Nicolai Kraus
- Last Active Jan 27th 2019

- Discussion Type
- discussion topicSuper Lie n-algebra extensions, higher WZW models and super p-branes
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 151
- Last comment by Urs
- Last Active Jan 25th 2019

- Discussion Type
- discussion topicA universal property of Day convolution
- Category Mathematics, Physics & Philosophy
- Started by hepworth
- Comments 3
- Last comment by Mike Shulman
- Last Active Dec 27th 2018

- Discussion Type
- discussion topicE. Finster, "Towards Higher Universal Algebra in Type Theory"
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 18
- Last comment by Alizter
- Last Active Dec 25th 2018

- Discussion Type
- discussion topicHom Symmetric Monoidal Categories
- Category Mathematics, Physics & Philosophy
- Started by SridharRamesh
- Comments 10
- Last comment by Mike Shulman
- Last Active Dec 21st 2018

- Discussion Type
- discussion topicperceptual and mathematical invariants
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 20
- Last comment by David_Corfield
- Last Active Dec 17th 2018

- Discussion Type
- discussion topicHammock Localization
- Category Mathematics, Physics & Philosophy
- Started by mrmuon
- Comments 3
- Last comment by Mike Shulman
- Last Active Dec 12th 2018

- Discussion Type
- discussion topicEquivariant Cohomotopy and Branes
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 7
- Last comment by David_Corfield
- Last Active Dec 12th 2018

- Discussion Type
- discussion topicMultiplication for surreal numbers in HoTT
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 3
- Last comment by Mike Shulman
- Last Active Dec 5th 2018

- Discussion Type
- discussion topicWhat exactly is a judgement?
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 9
- Last comment by Alizter
- Last Active Nov 30th 2018

- Discussion Type
- discussion topicmodalities induced by cohesive (co)units
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 1
- Last comment by David_Corfield
- Last Active Nov 23rd 2018

- Discussion Type
- discussion topicInitiality Project: plans
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 103
- Last comment by atmacen
- Last Active Nov 7th 2018

- Discussion Type
- discussion topicHoTT: Category, Precategory and Univalent category?
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 1
- Last comment by Alizter
- Last Active Nov 7th 2018

- Discussion Type
- discussion topicBisimulation as path type for guarded recursive types
- Category Preprints & Publications
- Started by Alizter
- Comments 1
- Last comment by Alizter
- Last Active Nov 6th 2018

- Discussion Type
- discussion topicFailure of suspension spectrum functor to be strong closed?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Nov 6th 2018

- Discussion Type
- discussion topicCwF natural model and universes
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 14
- Last comment by Mike Shulman
- Last Active Oct 31st 2018

- Discussion Type
- discussion topicintroduction/elimination as co(units)
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by Mike Shulman
- Last Active Oct 31st 2018

- Discussion Type
- discussion topicTables of homotopy groups
- Category Mathematics, Physics & Philosophy
- Started by Alizter
- Comments 22
- Last comment by Urs
- Last Active Oct 26th 2018

- Discussion Type
- discussion topicHomotopy theory with finite topological spaces
- Category Mathematics, Physics & Philosophy
- Started by TobyBartels
- Comments 10
- Last comment by Richard Williamson
- Last Active Oct 22nd 2018

- Discussion Type
- discussion topicKerodon
- Category Mathematics, Physics & Philosophy
- Started by DavidRoberts
- Comments 12
- Last comment by Richard Williamson
- Last Active Oct 18th 2018

- Discussion Type
- discussion topicatomic things
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by David_Corfield
- Last Active Oct 17th 2018

- Discussion Type
- discussion topicEquivariant homotopy and M-Branes
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 55
- Last comment by Urs
- Last Active Oct 9th 2018

- Discussion Type
- discussion topicprofunctors
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 17
- Last comment by Mike Shulman
- Last Active Oct 1st 2018

- Discussion Type
- discussion topicWhat is Deligne asking?
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by Mike Shulman
- Last Active Sep 30th 2018

- Discussion Type
- discussion topicAdjunctions as lax bifunctors?
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 2
- Last comment by Mike Shulman
- Last Active Sep 30th 2018

- Discussion Type
- discussion topicAB-ish axioms for Barr categories?
- Category Mathematics, Physics & Philosophy
- Started by KevinCarlson
- Comments 3
- Last comment by Todd_Trimble
- Last Active Sep 29th 2018