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- Discussion Type
- discussion topicError using Unicode in a post
- Category n-Forum
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- discussion topicWell-orders and trichotomy
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- Comments 5
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- discussion topicAnnouncement: Guest posts on the nForum are now disabled
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- Started by Mike Shulman
- Comments 1
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- Last Active May 30th 2023

- Discussion Type
- discussion topicCollection vs Replacement of context proof: is there any difference
- Category n-Forum
- Started by YimingXu
- Comments 5
- Last comment by YimingXu
- Last Active May 1st 2023

- Discussion Type
- discussion topicCodomain fibration is a stack--reference request (want a proof)
- Category n-Forum
- Started by YimingXu
- Comments 4
- Last comment by YimingXu
- Last Active Apr 8th 2023

- Discussion Type
- discussion topicUnderstanding the proof of replacement of context (for SEAR or ETCS)
- Category n-Forum
- Started by YimingXu
- Comments 1
- Last comment by YimingXu
- Last Active Feb 8th 2023

- Discussion Type
- discussion topicMonadoids/Horizontal Categorification of Monads
- Category n-Forum
- Started by Wilf Offord
- Comments 6
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- Last Active Feb 7th 2023

- Discussion Type
- discussion topicNaming suggestions: Injectivity and orthogonality coincide
- Category n-Forum
- Started by mbid
- Comments 1
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- Last Active Jan 21st 2023

- Discussion Type
- discussion topicUnderstanding Theorem 27 in McLarty's CCAF
- Category n-Forum
- Started by YimingXu
- Comments 15
- Last comment by DavidRoberts
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- Started by Oscar_Cunningham
- Comments 3
- Last comment by TobyBartels
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- Discussion Type
- discussion topicSurreals in SEAR or ETCS?
- Category n-Forum
- Started by YimingXu
- Comments 9
- Last comment by YimingXu
- Last Active May 1st 2022

- Discussion Type
- discussion topicSubcategory classifier definition in CCAF
- Category n-Forum
- Started by YimingXu
- Comments 7
- Last comment by DavidRoberts
- Last Active Mar 10th 2022

- Discussion Type
- discussion topicDuality in McLarty's Axiomatization of CCAF
- Category n-Forum
- Started by YimingXu
- Comments 4
- Last comment by YimingXu
- Last Active Mar 4th 2022

- Discussion Type
- discussion topicUnderstanding Theorem 5 in McLarty's axiomatization of category of categories
- Category n-Forum
- Started by YimingXu
- Comments 7
- Last comment by DavidRoberts
- Last Active Feb 21st 2022

- Discussion Type
- discussion topicSerre subcategories in nLab and The Stacks project
- Category n-Forum
- Started by Alejandro González
- Comments 4
- Last comment by Hurkyl
- Last Active Nov 21st 2021

- Discussion Type
- discussion topicHow can the Cartesian product serve as the coproduct in Rel in SEAR
- Category n-Forum
- Started by YimingXu
- Comments 7
- Last comment by Mike Shulman
- Last Active Nov 19th 2021

- Discussion Type
- discussion topicWhen a strong monad becomes a monoidal functor?
- Category n-Forum
- Started by Antel
- Comments 7
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- Last Active Nov 17th 2021

- Discussion Type
- discussion topicCoq and Topos/Tripos Formalizations, and the Pitts contruction
- Category n-Forum
- Started by AdhamJ
- Comments 1
- Last comment by AdhamJ
- Last Active Oct 25th 2021

- Discussion Type
- discussion topicGo (the game) as a category?
- Category n-Forum
- Started by pyzg
- Comments 3
- Last comment by pyzg
- Last Active Oct 23rd 2021

- Discussion Type
- discussion topicNormal closure and space of factorizations of maps through a covering
- Category n-Forum
- Started by Adrien Brochier
- Comments 7
- Last comment by Adrien Brochier
- Last Active Oct 18th 2021

- Discussion Type
- discussion topicFully faithful bifunctor
- Category n-Forum
- Started by Zhen Huan
- Comments 4
- Last comment by Zhen Huan
- Last Active Sep 28th 2021

- Discussion Type
- discussion topicDefine operations so the collection of sets of natural numbers become a model of ETCS?
- Category n-Forum
- Started by YimingXu
- Comments 14
- Last comment by DavidRoberts
- Last Active May 13th 2021

- Discussion Type
- discussion topicHow do we treat an empty sort in FOLDS(FOL with dependent sorts)?
- Category n-Forum
- Started by YimingXu
- Comments 8
- Last comment by YimingXu
- Last Active May 1st 2021

- Discussion Type
- discussion topicYoneda lemma
- Category n-Forum
- Started by keithalewis
- Comments 9
- Last comment by Mike Shulman
- Last Active Feb 26th 2021

- Discussion Type
- discussion topicMissing images from Todd Trimble's surface diagram notes
- Category n-Forum
- Started by Alec Rhea
- Comments 7
- Last comment by Alec Rhea
- Last Active Feb 18th 2021

- Discussion Type
- discussion topicDeleting duplicates
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- Started by Tim_Porter
- Comments 3
- Last comment by Richard Williamson
- Last Active Dec 29th 2020

- Discussion Type
- discussion topicLogic of Imperatives in HoTT
- Category n-Forum
- Started by Nima
- Comments 8
- Last comment by David_Corfield
- Last Active Dec 28th 2020

- Discussion Type
- discussion topicType theory language with set theoretic objects?
- Category n-Forum
- Started by justin
- Comments 3
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- Last Active Dec 26th 2020

- Discussion Type
- discussion topic(Off topic) Trying to get a hold of Urs
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- Started by Eric
- Comments 1
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- Discussion Type
- discussion topicStrong induction principle for NNO
- Category n-Forum
- Started by YimingXu
- Comments 9
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- Discussion Type
- discussion topicUnderstand a proof in Lawvere's ETCS
- Category n-Forum
- Started by YimingXu
- Comments 6
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- Discussion Type
- discussion topicAdvice on tapping into "modalic math"?
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- Comments 4
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- Discussion Type
- discussion topicAppearance of formulas
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- Started by HDB
- Comments 4
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- Discussion Type
- discussion topicProfunctorial Homotopy Theory
- Category n-Forum
- Started by nonemenon
- Comments 2
- Last comment by nonemenon
- Last Active Sep 14th 2020

- Discussion Type
- discussion topicLogic in infinity groupoids?
- Category n-Forum
- Started by Hurkyl
- Comments 5
- Last comment by Hurkyl
- Last Active Jul 2nd 2020

- Discussion Type
- discussion topicrelationship between torsors and codiscrete groupoids?
- Category n-Forum
- Started by ziggurism
- Comments 1
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- Discussion Type
- discussion topiccomposition of quivers
- Category n-Forum
- Started by jim_stasheff
- Comments 2
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- Comments 15
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- discussion topicContraction as (co)derivation
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- Comments 1
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- Discussion Type
- discussion topicIs it possible to change username?
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- Comments 12
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- discussion topicLooking for guidance on how to approach analyzing Casanova with topos theory
- Category n-Forum
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- discussion topicHeyting-algebra homomorphism and topology
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- discussion topicCategorical definition of "division" or "remainder"
- Category n-Forum
- Started by Pieter
- Comments 51
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- Discussion Type
- discussion topicProjections
- Category n-Forum
- Started by Pieter
- Comments 8
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- Category n-Forum
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- Comments 11
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- Discussion Type
- discussion topiccurvature
- Category n-Forum
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- Comments 1
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- Discussion Type
- discussion topicOpen Problems in Category Theory
- Category n-Forum
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- Comments 3
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- Discussion Type
- discussion topicGeneralizing Cech-Delign Complex
- Category n-Forum
- Started by Cheynejmiller
- Comments 2
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- Discussion Type
- discussion topicAnonymous posting to nForum switched back on
- Category n-Forum
- Started by Richard Williamson
- Comments 6
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- Discussion Type
- discussion topicabstract model theory (institutions), modal logic & contexts
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- Comments 10
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- Comments 3
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- discussion topicprobabilistic type theory
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- Comments 3
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- Discussion Type
- discussion topicformatting help
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- Started by Mike Shulman
- Comments 22
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- Discussion Type
- discussion topicHow to ascertain whether an nLab article with short name already has a "Latest Changes" thread?
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- Comments 6
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- discussion topicSubscribing to discussions
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- Comments 3
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- Discussion Type
- discussion topicScience of Logic discussion down
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- Comments 8
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- discussion topicrequest hung when activating notifications
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- Comments 3
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- Discussion Type
- discussion topicName Change
- Category n-Forum
- Started by fastlane69
- Comments 2
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- Comments 1
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