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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 bundle bundles calculus categorical categories category category-theory chern-weil-theory cohesion 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 digraphs duality elliptic-cohomology enriched etcs fibration 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 lie-theory limits linear linear-algebra locale localization logic manifolds mathematics measure measure-theory modal modal-logic model model-category-theory 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 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 topicThe nLab in the eyes of others
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 54
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- Discussion Type
- discussion topicBasic questions about SEAR and its ETCS fragment
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- discussion topicUnification and Anti-Unification in HoTT.
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- Discussion Type
- discussion topicGeneralized Cohomology and Physics conference
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- Comments 6
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- Discussion Type
- discussion topicCategory theory of stochastic differential equations - any pointers?
- Category Mathematics, Physics & Philosophy
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- Discussion Type
- discussion topicHammock Localization
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- discussion topicGrothendieck toposes as bridges
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- Discussion Type
- discussion topiccharacter map on twisted non-abelian cohomology
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 44
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- Last Active Aug 18th 2021

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

- Discussion Type
- discussion topicUnderstanding preprint "Topos and Stacks of Deep Neural Networks"
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 18
- Last comment by rongmin
- Last Active Aug 12th 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 topicCybernetics and Homotopy Theory/Category Theory
- Category Mathematics, Physics & Philosophy
- Started by Jon Beardsley
- Comments 23
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- Discussion Type
- discussion topicNontrivial examples of rig categories
- Category Mathematics, Physics & Philosophy
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- Comments 3
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- Last Active Jun 21st 2021

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

- Discussion Type
- discussion topicBugs and software issues
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 7
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- Discussion Type
- discussion topicCayley mixture
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 117
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- Discussion Type
- discussion topicmonad transformer
- Category Mathematics, Physics & Philosophy
- Started by David_Corfield
- Comments 34
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- 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 topic"Fundamental weight systems are quantum states"
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 5
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- Discussion Type
- discussion topicQuantum Computational trilogy
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 7
- Last comment by David_Corfield
- Last Active May 16th 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
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- Discussion Type
- discussion topic"Twisted Cohomotopy implies M-theory anomaly cancellation"
- Category Mathematics, Physics & Philosophy
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- Comments 130
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- Last Active Apr 1st 2021

- Discussion Type
- discussion topicHegelian philosophy and foundations
- Category Mathematics, Physics & Philosophy
- Started by Korman
- Comments 5
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- Last Active Mar 9th 2021

- Discussion Type
- discussion topic"M/F-Theory as Mf-Theory"
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 24
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- 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
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- Discussion Type
- discussion topicBibliography
- Category Mathematics, Physics & Philosophy
- Started by Andrew Stacey
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- Discussion Type
- discussion topicSymmetric Monoidal Pseudofunctors out of FinSet into Cat
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- Discussion Type
- discussion topicUnivocality of Being
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- Started by David_Corfield
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- Discussion Type
- discussion topicfunctoriality of spinor bundles
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- Started by Tobias Fritz
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- Discussion Type
- discussion topicWhat should be a 2-geometric morphism?
- Category Mathematics, Physics & Philosophy
- Started by Lee Wang
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- Last Active Aug 5th 2020

- Discussion Type
- discussion topicfolded-wave matter modeling allows universe evolution
- Category Mathematics, Physics & Philosophy
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- Discussion Type
- discussion topiclocally small category
- Category Mathematics, Physics & Philosophy
- Started by Todd_Trimble
- Comments 26
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- Last Active Jul 29th 2020

- Discussion Type
- discussion topicTwisted Cohomotopy implies the M5-brane model
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 53
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- 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
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- Discussion Type
- discussion topicIs the group Hopf algebra left and right adjoint?
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- Discussion Type
- discussion topicA-infinity Frobenius algebras
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
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- Discussion Type
- discussion topicWho has worked on measure theory based on locale-like structures?
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- Started by StephenGaito
- Comments 5
- Last comment by Dmitri Pavlov
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- Discussion Type
- discussion topicChu(Cat,Set)
- Category Mathematics, Physics & Philosophy
- Started by Mike Shulman
- Comments 6
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- Discussion Type
- discussion topicOutside the weak ω-category
- Category Mathematics, Physics & Philosophy
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- Comments 2
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- Discussion Type
- discussion topicMonads on monoids
- Category Mathematics, Physics & Philosophy
- Started by Oscar_Cunningham
- Comments 3
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- Discussion Type
- discussion topicA note on the (graded) Hori transform
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- discussion topicmath curriculum
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- Comments 1
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- Discussion Type
- discussion topicField with one element - implications for (HO) logic, set theory, type theory?
- Category Mathematics, Physics & Philosophy
- Started by tomr
- Comments 3
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- discussion topiclocality, logic, Topoi, entropy and anti-entropy
- Category Mathematics, Physics & Philosophy
- Started by bblfish
- Comments 7
- Last comment by bblfish
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- Discussion Type
- discussion topicCohomotopy, Configurations and Chords
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 17
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- Discussion Type
- discussion topicPro-finite su(2)-representations?
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 2
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- Discussion Type
- discussion topicDuality is Duality
- Category Mathematics, Physics & Philosophy
- Started by Urs
- Comments 5
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- 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
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- discussion topichyperbolic knots and BTZ black holes
- Category Mathematics, Physics & Philosophy
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- Comments 5
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- discussion topicSymmetric monoidal iff product braided
- Category Mathematics, Physics & Philosophy
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- Comments 3
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- discussion topicGeometry of Shapes and Physics
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- discussion topicWLOG
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- discussion topicintensive/extensive quantities
- Category Mathematics, Physics & Philosophy
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- Comments 6
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- Discussion Type
- discussion topicExtensive and Intensive Properties
- Category Mathematics, Physics & Philosophy
- Started by Dean
- Comments 4
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- 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
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- Last Active Nov 23rd 2019