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2-category 2-category-theory abelian-categories adjoint algebra algebraic algebraic-geometry algebraic-topology analysis analytic-geometry arithmetic arithmetic-geometry beauty bundles calculus categorical categories category category-theory chern-weil-theory cohesion cohesive-homotopy-type-theory cohomology colimits combinatorics 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 finite 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 history homological homological-algebra homotopy homotopy-theory homotopy-type-theory index-theory integration integration-theory k-theory lie-theory limit 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 nlab nonassociative noncommutative noncommutative-geometry number-theory object 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 string string-theory subobject superalgebra supergeometry svg symplectic-geometry synthetic-differential-geometry terminology theory topology topos topos-theory type type-theory universal variational-calculus

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- Discussion Type
- discussion topicBarcan formula
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 1
- Last comment by David_Corfield
- Last Active Nov 8th 2017

- Discussion Type
- discussion topicGuarded dependent Type Theory
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 4
- Last comment by spitters
- Last Active Nov 7th 2017

- Discussion Type
- discussion topicWhen the action groupoid matters
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 14
- Last comment by John Dougherty
- Last Active Nov 6th 2017

- Discussion Type
- discussion topicExact Bimonads on Set
- Category Mathematics, Physics & Philosophy
- Started by Ben_Sprott
- Comments 3
- Last comment by Ben_Sprott
- Last Active Nov 6th 2017

- Discussion Type
- discussion topicDo marked simplicial sets form a cohesive quasitopos?
- Category Mathematics, Physics & Philosophy
- Started by Fosco
- Comments 1
- Last comment by Fosco
- Last Active Nov 4th 2017

- Discussion Type
- discussion topicDeligne's theorem on tensor categories -- relevance for SUSY section
- Category Mathematics, Physics & Philosophy
- Started by sgarush
- Comments 2
- Last comment by Urs
- Last Active Nov 2nd 2017

- Discussion Type
- discussion topicconal-conic geometry
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 3
- Last comment by Tim_Porter
- Last Active Oct 31st 2017

- Discussion Type
- discussion topicCausal theories and internal categories
- Category Mathematics, Physics & Philosophy
- Started by Ben_Sprott
- Comments 1
- Last comment by Ben_Sprott
- Last Active Oct 29th 2017

- Discussion Type
- discussion topicGeneral linear 2-groupoid
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 7
- Last comment by Andrey Mikhovich
- Last Active Oct 27th 2017

- Discussion Type
- discussion topicCan one create a ‘Transverse Field Ising Spin’-compatible Super Hamiltonian?
- Category Mathematics, Physics & Philosophy
- Started by ProgrammingGodJordan
- Comments 3
- Last comment by ProgrammingGodJordan
- Last Active Oct 22nd 2017

- Discussion Type
- discussion topictranslating classical logic into linear logic
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 12
- Last comment by Mike Shulman
- Last Active Oct 18th 2017

- Discussion Type
- discussion topicDifferential bundles and fibrations for tangent categories
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 38
- Last comment by David_Corfield
- Last Active Oct 17th 2017

- Discussion Type
- discussion topic“String” diagrams for bimonoidal or rig categories?
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 3
- Last comment by David_Corfield
- Last Active Oct 16th 2017

- Discussion Type
- discussion topicpath and fundamental groupoids
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 10
- Last comment by David_Corfield
- Last Active Oct 12th 2017

- Discussion Type
- discussion topicMagmoid, semicategory, semifunctor
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 18
- Last comment by maxsnew
- Last Active Oct 3rd 2017

- Discussion Type
- discussion topicGeneralized Co-Presheaves for Generalized Multicategories
- Category Mathematics, Physics & Philosophy
- Started by maxsnew
- Comments 5
- Last comment by maxsnew
- Last Active Oct 2nd 2017

- Discussion Type
- discussion topicDirect Models
- Category Mathematics, Physics & Philosophy
- Started by maxsnew
- Comments 1
- Last comment by maxsnew
- Last Active Oct 2nd 2017

- Discussion Type
- discussion topicReasoning and the logic of things
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by David_Corfield
- Last Active Sep 29th 2017

- Discussion Type
- discussion topicClassifying Object for deRham cohomology?
- Category Mathematics, Physics & Philosophy
- Started by Jon Beardsley
- Comments 5
- Last comment by Urs
- Last Active Sep 28th 2017

- Discussion Type
- discussion topicQuantum Experiments and Frobenius Monads
- Category Mathematics, Physics & Philosophy
- Started by Ben_Sprott
- Comments 3
- Last comment by Urs
- Last Active Sep 25th 2017

- Discussion Type
- discussion topicTriality
- Category Mathematics, Physics & Philosophy
- Started by trent
- Comments 11
- Last comment by trent
- Last Active Sep 19th 2017

- Discussion Type
- discussion topicCohesive homotopy type theory and philosophy
- Category Mathematics, Physics & Philosophy
- Started by Brian
- Comments 7
- Last comment by DavidRoberts
- Last Active Sep 16th 2017

- Discussion Type
- discussion topicFactorization algebras in perturbative quantum field theory
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Sep 7th 2017

- Discussion Type
- discussion topicdistributions in terms of the Cahiers topos
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 6
- Last comment by David_Corfield
- Last Active Sep 7th 2017

- Discussion Type
- discussion topicWeak n-categories are well and good, but what about weak n-functors?
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 18
- Last comment by Harry Gindi
- Last Active Sep 6th 2017

- Discussion Type
- discussion topicMO question on differential cohesion
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by Urs
- Last Active Sep 4th 2017

- Discussion Type
- discussion topicdual vs. opposite category
- Category Mathematics, Physics & Philosophy
- Started by zskoda
- Comments 5
- Last comment by Mike Shulman
- Last Active Sep 1st 2017

- Discussion Type
- discussion topiccreated limit
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 10
- Last comment by samo
- Last Active Aug 29th 2017

- Discussion Type
- discussion topic(∞,1)-profunctor
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 4
- Last comment by Mike Shulman
- Last Active Aug 24th 2017

- Discussion Type
- discussion topicParametrized higher category theory and higher algebra
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 44
- Last comment by Mike Shulman
- Last Active Aug 23rd 2017

- Discussion Type
- discussion topicclosed monoidal (infinity,1)-category
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 2
- Last comment by David_Corfield
- Last Active Aug 15th 2017

- Discussion Type
- discussion topicresolutions of graded maniolds
- Category Mathematics, Physics & Philosophy
- Started by jim_stasheff
- Comments 1
- Last comment by jim_stasheff
- Last Active Aug 13th 2017

- Discussion Type
- discussion topicdirected graph
- Category Mathematics, Physics & Philosophy
- Started by Eric
- Comments 97
- Last comment by Peter Heinig
- Last Active Aug 6th 2017

- Discussion Type
- discussion topiccospan or co-span
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 5
- Last comment by David_Corfield
- Last Active Aug 5th 2017

- Discussion Type
- discussion topicdouble coset
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 16
- Last comment by David_Corfield
- Last Active Aug 4th 2017

- Discussion Type
- discussion topicIntro to nLab reading list? (Or: programmer looking to build a semantic database.)
- Category Mathematics, Physics & Philosophy
- Started by WillemMali
- Comments 3
- Last comment by WillemMali
- Last Active Aug 4th 2017

- Discussion Type
- discussion topicquest for generalized cohomology theory for M-brane charges
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 25
- Last comment by David_Corfield
- Last Active Aug 1st 2017

- Discussion Type
- discussion topicBase change for straightening
- Category Mathematics, Physics & Philosophy
- Started by Harry Gindi
- Comments 8
- Last comment by Harry Gindi
- Last Active Jul 26th 2017

- Discussion Type
- discussion topicrheonomy in supergravity -- elementary formalization?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 32
- Last comment by David_Corfield
- Last Active Jul 26th 2017

- Discussion Type
- discussion topicmodule versus algebra resolurions
- Category Mathematics, Physics & Philosophy
- Started by jim stasheff
- Comments 1
- Last comment by jim stasheff
- Last Active Jul 25th 2017

- Discussion Type
- discussion topicMnemonics for category theory
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 21
- Last comment by Peter Heinig
- Last Active Jul 20th 2017

- Discussion Type
- discussion topicHow essential is planarity for rigorous treatments of pasting diagrams and pasting schemes?
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 7
- Last comment by Peter Heinig
- Last Active Jul 19th 2017

- Discussion Type
- discussion topicstring diagrams for closed categories
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 27
- Last comment by Mike Shulman
- Last Active Jul 18th 2017

- Discussion Type
- discussion topicpasting diagram
- Category Mathematics, Physics & Philosophy
- Started by Eric
- Comments 12
- Last comment by Peter Heinig
- Last Active Jul 18th 2017

- Discussion Type
- discussion topicspace and quantity
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 17
- Last comment by Peter Heinig
- Last Active Jul 16th 2017

- Discussion Type
- discussion topicAcirclic categories?
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 3
- Last comment by Tim_Porter
- Last Active Jul 13th 2017

- Discussion Type
- discussion topicHigher model theory
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 4
- Last comment by Urs
- Last Active Jul 12th 2017

- Discussion Type
- discussion topicHigher model theory - another possible test question concerning an existent use of identity arrows
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 2
- Last comment by Mike Shulman
- Last Active Jul 10th 2017

- Discussion Type
- discussion topicperfect ring
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 4
- Last comment by David_Corfield
- Last Active Jul 7th 2017

- Discussion Type
- discussion topicRelating two functors via one "intermediary" functor.
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 3
- Last comment by Peter Heinig
- Last Active Jul 5th 2017

- Discussion Type
- discussion topica "first order" lifting problem
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 4
- Last comment by Mike Shulman
- Last Active Jun 25th 2017

- Discussion Type
- discussion topicToy Models of Differential Cohesion?
- Category Mathematics, Physics & Philosophy
- Started by maxsnew
- Comments 36
- Last comment by DavidRoberts
- Last Active Jun 24th 2017

- Discussion Type
- discussion topicHETEROMORPHISMS
- Category Mathematics, Physics & Philosophy
- Started by jim_stasheff
- Comments 10
- Last comment by Todd_Trimble
- Last Active Jun 24th 2017

- Discussion Type
- discussion topicsymbol for infinitesimal shape
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 91
- Last comment by Urs
- Last Active Jun 22nd 2017

- Discussion Type
- discussion topic"Finitely presented" (in the group-theory-sense) categories: recommendations of articles or books?
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 6
- Last comment by Peter Heinig
- Last Active Jun 20th 2017

- Discussion Type
- discussion topicProperty-functors switchable by an inflationary endofunctor: how to call them?
- Category Mathematics, Physics & Philosophy
- Started by Peter Heinig
- Comments 2
- Last comment by Todd_Trimble
- Last Active Jun 14th 2017

- Discussion Type
- discussion topicadjunction
- Category Mathematics, Physics & Philosophy
- Started by Eric
- Comments 63
- Last comment by Peter Heinig
- Last Active Jun 12th 2017

- Discussion Type
- discussion topicenriching in a cohesive topos
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 1
- Last comment by David_Corfield
- Last Active Jun 11th 2017

- Discussion Type
- discussion topicdifferential cohesion
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 8
- Last comment by Mike Shulman
- Last Active Jun 9th 2017

- Discussion Type
- discussion topicgraph infinity-toposes
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 2
- Last comment by spitters
- Last Active Jun 2nd 2017