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    • starting article on pushouts in simplical type theory

      Anonymouse

      v1, current

    • starting page on coproducts in simplicial type theory

      Anonymouse

      v1, current

    • Page created, but author did not leave any comments.

      v1, current

    • starting stub on regular expressions

      Anonymouse

      v1, current

    • Following his passing yesterday from Covid-19, I have added a bit more on his contributions that are relevant to the nPOV.

      diff, v3, current

    • Page created, but author did not leave any comments.

      v1, current

    • Added more material to Boolean algebra, particularly the principle of duality and the connection to Boolean rings, and a wee bit of material on Stone duality.

      Stone duality deserves greater expansion, bringing out the dualities via ambimorphic (ahem, schizophrenic) structures on the 2-element set, and mentioning the connection to Chu spaces. Another day, another dollar.

    • I’ve inserted proofs of equivalence of the three conditions listed in the definition of De Morgan algebra.

    • Page created, but author did not leave any comments.

      Anonymous

      v1, current

    • Added link to “multiplicatively cancellable semi-ring”.

      diff, v32, current

    • category: people page for reference

      Anonymouse

      v1, current

    • starting page on Conway semirings

      Anonymouse

      v1, current

    • starting page on Priestley spaces

      Anonymouse

      v1, current

    • category: people page for references

      Anonymouse

      v1, current

    • category: people page for references

      Anonymouse

      v1, current

    • starting page on involutive posets

      Anonymouse

      v1, current

    • Fixup description of birkhoff duality. Add small section on free distributive lattices.

      Gershom

      diff, v19, current

    • adding another disambiguation link at the top for the use of “regular element” in a ring as a synonym for “cancellative element”

      different anonymous person

      diff, v8, current

    • Page created, but author did not leave any comments.

      Anonymous

      v1, current

    • starting page on simplicial types

      Anonymouse

      v1, current

    • starting article on pairs of composable morphisms in simplicial type theory

      Anonymouse

      v1, current

    • starting page on cospans in simplicial type theory

      Anonymouse

      v1, current

    • starting article on spans in simplicial type theory

      Anonymouse

      v1, current

    • splitting this off from su(2)-anyons: Copied much of the material over, but also added a few more sentences.

      For the moment this entry is a cautionary tale about confirmation bias more than an entry about physics.

      v1, current

    • I added a sentence to fundamental group which contains a link to an example for a fundamental group of an affine scheme.

    • starting page on finitely cocomplete (infinity,1)-categories

      Anonymouse

      v1, current

    • starting page on finitely cocomplete types

      Anonymouse

      v1, current

    • starting page on finitely complete types

      Anonymouse

      v1, current

    • starting page on discrete Segal types

      v1, current

    • starting page on univalent types in simplicial type theory, i.e. Rezk types without the Segal condition

      Anonymouse

      v1, current

    • starting page on isomorphisms in a Segal type

      v1, current

    • category: people page for reference

      • César Bardomiano Martínez, Limits and colimits of synthetic ∞-categories [arXiv:2202.12386]

      Anonymouse

      v1, current

    • Page created, but author did not leave any comments.

      Anonymous

      v1, current

    • starting page on heterogeneous hom types in simplicial type theory

      Anonymouse

      v1, current

    • It was pointed out to me today that in the very special case of internal (0,1)-category objects in Set, what we are calling a “pre-category” reduces to a preordered set, while adding the “univalence/Rezk-completeness” condition to make it a “category” promotes it to a partially ordered set. I feel like surely I knew that once, but if so, I had forgotten. It provides some extra weight behind this term “precategory”, especially since some category theorists like to say merely “ordered set” to mean “partially ordered set”.

    • added to complete Segal space a discussion of what an ordinary category looks like when regarded as a complete Segal space.

      (This is meant to be pedagogical, therefore the recollection of all the basics at the beginning.)

    • made explicit the conclusion that forming Lie groupoid convolution algebras is a (2,1)-functor

      C*(−):DiffStackpropAAA⟶C*Algopbim

      here

      diff, v62, current

    • brief category:people-entry for hyperlinking references

      v1, current

    • added to groupoid a section on the description in terms of 2-coskeletal Kan complexes.

    • starting page on cubical objects in an (∞,1)-category

      Anonymouse

      v1, current

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