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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.
   • CommentAuthorUrs
   • CommentTimeNov 26th 2019
   • PermaLink
   Author: Urs
   Format: MarkdownItexa page to record the 2-term relation on [[horizontal chord diagrams]], to go with the entries _[[4T relation]]_ and _[[horizontal weight system]]_ <a href="https://ncatlab.org/nlab/revision/2T+relations/1">v1</a>, <a href="https://ncatlab.org/nlab/show/2T+relations">current</a>

   a page to record the 2-term relation on horizontal chord diagrams, to go with the entries 4T relation and horizontal weight system

   v1, current

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeNov 26th 2019
   • PermaLink
   Author: Urs
   Format: MarkdownItexmade page name singular <a href="https://ncatlab.org/nlab/revision/2T+relation/1">v1</a>, <a href="https://ncatlab.org/nlab/show/2T+relation">current</a>

   made page name singular

   v1, current

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeSep 9th 2023
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have made explicit the range of the indices for which the relation holds (previously there was only the graphics for the special case $i \lt j \lt k \lt l$) <a href="https://ncatlab.org/nlab/revision/diff/2T+relation/5">diff</a>, <a href="https://ncatlab.org/nlab/revision/2T+relation/5">v5</a>, <a href="https://ncatlab.org/nlab/show/2T+relation">current</a>

   I have made explicit the range of the indices for which the relation holds (previously there was only the graphics for the special case $i \lt j \lt k \lt l$)

   diff, v5, current