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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 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 internal-categories k-theory lie-theory limits linear linear-algebra locale localization logic mathematics measure 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 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

1. • CommentRowNumber1.
   • CommentAuthornLab edit announcer
   • CommentTimeMar 3rd 2021
   • PermaLink
   Author: nLab edit announcer
   Format: MarkdownItexFirst-order set theory as a set theory with families of sets. Anonymous <a href="https://ncatlab.org/nlab/revision/first-order+set+theory/1">v1</a>, <a href="https://ncatlab.org/nlab/show/first-order+set+theory">current</a>

   First-order set theory as a set theory with families of sets.

   Anonymous

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorDmitri Pavlov
   • CommentTimeMar 3rd 2021
   • PermaLink
   Author: Dmitri Pavlov
   Format: MarkdownItexNone of these pages (nth order set theory) list any references. Is this concept found in the literature?

   None of these pages (nth order set theory) list any references. Is this concept found in the literature?

3. • CommentRowNumber3.
   • CommentAuthorDmitri Pavlov
   • CommentTimeDec 2nd 2022
   • PermaLink
   Author: Dmitri Pavlov
   Format: MarkdownItexI suggest deleting this entry, which (a) has no meaningful description of its subject matter and (b) no references to any sources.

   I suggest deleting this entry, which (a) has no meaningful description of its subject matter and (b) no references to any sources.

4. • CommentRowNumber4.
   • CommentAuthorUrs
   • CommentTimeDec 3rd 2022
   • PermaLink
   Author: Urs
   Format: MarkdownItexThanks for bumping up this issue. I don't really have spare cycles for this. But as a quick fix, I have deleted the previous Idea section (which didn't seem to make headway on explaining its subject matter) and added one reference: * [[Steve Awodey]], [[Carsten Butz]], [[Alex Simpson]], [[Thomas Streicher]], *Relating first-order set theories, toposes and categories of classes*, Annals of Pure and Applied Logic **165** 2 (2014) 428-502 &lbrack;[doi:10.1016/j.apal.2013.06.004](https://doi.org/10.1016/j.apal.2013.06.004)&rbrack; <a href="https://ncatlab.org/nlab/revision/diff/first-order+set+theory/2">diff</a>, <a href="https://ncatlab.org/nlab/revision/first-order+set+theory/2">v2</a>, <a href="https://ncatlab.org/nlab/show/first-order+set+theory">current</a>

   Thanks for bumping up this issue. I don’t really have spare cycles for this. But as a quick fix, I have deleted the previous Idea section (which didn’t seem to make headway on explaining its subject matter) and added one reference:

   • Steve Awodey, Carsten Butz, Alex Simpson, Thomas Streicher, Relating first-order set theories, toposes and categories of classes, Annals of Pure and Applied Logic 165 2 (2014) 428-502 [doi:10.1016/j.apal.2013.06.004]

   diff, v2, current