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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 finite 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 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

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- Discussion Type
- discussion topicHypothesis H and Matrix models
- Category Mathematics, Physics & Philosophy
- Started by Spacenumbat
- Comments 3
- Last comment by Spacenumbat
- Last Active Dec 31st 2021

- Discussion Type
- discussion topicintroduction/elimination as co(units)
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 6
- Last comment by David_Corfield
- Last Active Dec 22nd 2021

- Discussion Type
- discussion topicChern-Simons and Other Topological Field Theories workshop
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 2
- Last comment by David_Corfield
- Last Active Nov 17th 2021

- Discussion Type
- discussion topicThe nLab in the eyes of others
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 54
- Last comment by Urs
- Last Active Oct 5th 2021

- Discussion Type
- discussion topicBasic questions about SEAR and its ETCS fragment
- Category Mathematics, Physics & Philosophy
- Started by saolof
- Comments 3
- Last comment by Mike Shulman
- Last Active Oct 3rd 2021

- Discussion Type
- discussion topicUnification and Anti-Unification in HoTT.
- Category Mathematics, Physics & Philosophy
- Started by Nima
- Comments 3
- Last comment by Nima
- Last Active Sep 28th 2021

- Discussion Type
- discussion topicGeneralized Cohomology and Physics conference
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 6
- Last comment by David_Corfield
- Last Active Sep 26th 2021

- Discussion Type
- discussion topicCategory theory of stochastic differential equations - any pointers?
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 1
- Last comment by tomr
- Last Active Sep 16th 2021

- Discussion Type
- discussion topicHammock Localization
- Category Mathematics, Physics & Philosophy
- Started by mrmuon
- Comments 4
- Last comment by Dmitri Pavlov
- Last Active Sep 13th 2021

- Discussion Type
- discussion topicGrothendieck toposes as bridges
- Category Mathematics, Physics & Philosophy
- Started by Korman
- Comments 8
- Last comment by OliviaCaramello
- Last Active Sep 6th 2021

- Discussion Type
- discussion topiccharacter map on twisted non-abelian cohomology
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 44
- Last comment by Urs
- Last Active Aug 18th 2021

- Discussion Type
- discussion topicPredicates and Equivalences
- Category Mathematics, Physics & Philosophy
- Started by Nima
- Comments 5
- Last comment by Nima
- Last Active Aug 15th 2021

- Discussion Type
- discussion topicDoes "topos and stacks of DNN" is the tool for M-theory as autodidactic (Multi)Universe?
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 3
- Last comment by rongmin
- Last Active Jul 28th 2021

- Discussion Type
- discussion topicNontrivial examples of rig categories
- Category Mathematics, Physics & Philosophy
- Started by PaoloPerrone
- Comments 3
- Last comment by PaoloPerrone
- Last Active Jun 21st 2021

- Discussion Type
- discussion topicperceptual and mathematical invariants
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 22
- Last comment by David_Corfield
- Last Active Jun 18th 2021

- Discussion Type
- discussion topicBugs and software issues
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 7
- Last comment by Tim_Porter
- Last Active Jun 8th 2021

- Discussion Type
- discussion topicmonad transformer
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 34
- Last comment by Urs
- Last Active May 19th 2021

- Discussion Type
- discussion topicWorking group online on differential cohesive topos?
- Category Mathematics, Physics & Philosophy
- Started by iamcxds
- Comments 5
- Last comment by Urs
- Last Active May 19th 2021

- Discussion Type
- discussion topicWhat is a variable?
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 102
- Last comment by TobyBartels
- Last Active May 7th 2021

- Discussion Type
- discussion topicdcct to go to the arXiv
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 96
- Last comment by Urs
- Last Active Apr 3rd 2021

- Discussion Type
- discussion topic"M/F-Theory as Mf-Theory"
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 24
- Last comment by Urs
- Last Active Mar 6th 2021

- Discussion Type
- discussion topicWhat else is expected from F1 to complete M-theory at last?
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 3
- Last comment by Richard Williamson
- Last Active Feb 28th 2021

- Discussion Type
- discussion topicReference article for the statement "perturbative theories correspond to arithmetic geometries Fp"
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 3
- Last comment by Urs
- Last Active Feb 28th 2021

- Discussion Type
- discussion topiccontinuum hypothesis
- Category Mathematics, Physics & Philosophy
- Started by Stephan A Spahn
- Comments 27
- Last comment by David_Corfield
- Last Active Feb 9th 2021

- Discussion Type
- discussion topicBibliography
- Category Mathematics, Physics & Philosophy
- Started by Andrew Stacey
- Comments 28
- Last comment by Richard Williamson
- Last Active Feb 9th 2021

- Discussion Type
- discussion topicSymmetric Monoidal Pseudofunctors out of FinSet into Cat
- Category Mathematics, Physics & Philosophy
- Started by Jon Beardsley
- Comments 8
- Last comment by Richard Williamson
- Last Active Dec 17th 2020

- Discussion Type
- discussion topicUnivocality of Being
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 3
- Last comment by Urs
- Last Active Dec 8th 2020

- Discussion Type
- discussion topicfunctoriality of spinor bundles
- Category Mathematics, Physics & Philosophy
- Started by Tobias Fritz
- Comments 5
- Last comment by Urs
- Last Active Dec 7th 2020

- Discussion Type
- discussion topicWhat should be a 2-geometric morphism?
- Category Mathematics, Physics & Philosophy
- Started by Lee Wang
- Comments 2
- Last comment by Mike Shulman
- Last Active Aug 5th 2020

- Discussion Type
- discussion topicfolded-wave matter modeling allows universe evolution
- Category Mathematics, Physics & Philosophy
- Started by John McCarty
- Comments 1
- Last comment by John McCarty
- Last Active Aug 2nd 2020

- Discussion Type
- discussion topicTwisted Cohomotopy implies the M5-brane model
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 53
- Last comment by Urs
- Last Active Jul 22nd 2020

- Discussion Type
- discussion topicAre Monads more natural than sketches (does it make sense to compare them?)
- Category Mathematics, Physics & Philosophy
- Started by Ben_Sprott
- Comments 3
- Last comment by Ben_Sprott
- Last Active Jul 18th 2020

- Discussion Type
- discussion topicThe Theory of Categories Via Monads
- Category Mathematics, Physics & Philosophy
- Started by Ben_Sprott
- Comments 1
- Last comment by Ben_Sprott
- Last Active Jul 18th 2020

- Discussion Type
- discussion topicIs the group Hopf algebra left and right adjoint?
- Category Mathematics, Physics & Philosophy
- Started by Mirco Richter
- Comments 1
- Last comment by Mirco Richter
- Last Active Jul 14th 2020

- Discussion Type
- discussion topicA-infinity Frobenius algebras
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Jun 2nd 2020

- Discussion Type
- discussion topicWho has worked on measure theory based on locale-like structures?
- Category Mathematics, Physics & Philosophy
- Started by StephenGaito
- Comments 5
- Last comment by Dmitri Pavlov
- Last Active May 22nd 2020

- Discussion Type
- discussion topicChu(Cat,Set)
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 6
- Last comment by David_Corfield
- Last Active May 20th 2020

- Discussion Type
- discussion topicOutside the weak ω-category
- Category Mathematics, Physics & Philosophy
- Started by paikeos
- Comments 2
- Last comment by Dmitri Pavlov
- Last Active May 6th 2020

- Discussion Type
- discussion topicMonads on monoids
- Category Mathematics, Physics & Philosophy
- Started by Oscar_Cunningham
- Comments 3
- Last comment by Oscar_Cunningham
- Last Active Apr 16th 2020

- Discussion Type
- discussion topicmath curriculum
- Category Mathematics, Physics & Philosophy
- Started by MPrust
- Comments 1
- Last comment by MPrust
- Last Active Mar 10th 2020

- Discussion Type
- discussion topicField with one element - implications for (HO) logic, set theory, type theory?
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 3
- Last comment by David_Corfield
- Last Active Mar 4th 2020

- Discussion Type
- discussion topiclocality, logic, Topoi, entropy and anti-entropy
- Category Mathematics, Physics & Philosophy
- Started by bblfish
- Comments 7
- Last comment by bblfish
- Last Active Feb 12th 2020

- Discussion Type
- discussion topicCohomotopy, Configurations and Chords
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 17
- Last comment by Urs
- Last Active Jan 26th 2020

- Discussion Type
- discussion topicPro-finite su(2)-representations?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 2
- Last comment by Urs
- Last Active Jan 16th 2020

- Discussion Type
- discussion topicDuality is Duality
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 5
- Last comment by Urs
- Last Active Jan 15th 2020

- Discussion Type
- discussion topicDo translations among grammars and encodings (between grammar and other space) form group structure
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 2
- Last comment by tomr
- Last Active Jan 12th 2020

- Discussion Type
- discussion topichyperbolic knots and BTZ black holes
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 5
- Last comment by Urs
- Last Active Dec 25th 2019

- Discussion Type
- discussion topicSymmetric monoidal iff product braided
- Category Mathematics, Physics & Philosophy
- Started by DavidRoberts
- Comments 1
- Last comment by DavidRoberts
- Last Active Dec 18th 2019

- Discussion Type
- discussion topicPinwheel composition
- Category Mathematics, Physics & Philosophy
- Started by SridharRamesh
- Comments 3
- Last comment by SridharRamesh
- Last Active Dec 13th 2019

- Discussion Type
- discussion topicWLOG
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 10
- Last comment by solson
- Last Active Dec 2nd 2019

- Discussion Type
- discussion topicintensive/extensive quantities
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 6
- Last comment by Dean
- Last Active Nov 25th 2019

- Discussion Type
- discussion topicExtensive and Intensive Properties
- Category Mathematics, Physics & Philosophy
- Started by Dean
- Comments 4
- Last comment by David_Corfield
- Last Active Nov 25th 2019

- Discussion Type
- discussion topicWhat is ISP? (used by Y. Maruyama in "Natural duality, Modality, and Coalgebras")
- Category Mathematics, Physics & Philosophy
- Started by bblfish
- Comments 2
- Last comment by bblfish
- Last Active Nov 23rd 2019

- Discussion Type
- discussion topicuniversal Cat-bundles
- Category Mathematics, Physics & Philosophy
- Started by chase cain
- Comments 1
- Last comment by chase cain
- Last Active Nov 21st 2019

- Discussion Type
- discussion topicLooking for some theses
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 1
- Last comment by Mike Shulman
- Last Active Oct 28th 2019

- Discussion Type
- discussion topica pushout of spheres
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 4
- Last comment by Urs
- Last Active Oct 28th 2019

- Discussion Type
- discussion topicExamples of Symmetric Multicategories
- Category Mathematics, Physics & Philosophy
- Started by mrmuon
- Comments 6
- Last comment by Mike Shulman
- Last Active Oct 28th 2019

- Discussion Type
- discussion topicDo non-monotonicity / higher-order / probabilistics / modalities / connectives exhaust all possible
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 9
- Last comment by atmacen
- Last Active Oct 25th 2019

- Discussion Type
- discussion topiccohomology of group-completed configuration space?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 11
- Last comment by Urs
- Last Active Oct 19th 2019

- Discussion Type
- discussion topicEquivariant Cohomotopy and Branes
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 9
- Last comment by Urs
- Last Active Oct 14th 2019