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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.
   • CommentAuthorTodd_Trimble
   • CommentTimeJun 5th 2017
   • PermaLink
   Author: Todd_Trimble
   Format: MarkdownItexI started a new article [[hereditary property]]. In so doing I inadvertently created a number of gray links (some of which I found surprising). Comments are welcome.

   I started a new article hereditary property. In so doing I inadvertently created a number of gray links (some of which I found surprising). Comments are welcome.

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeJun 6th 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexOne of the gray links was "torsionfree module". We do have a minimum at _[[torsion-free module]]_. I have now made "torsionfree module" a redirect. Please feel free to rename the entry if "torsionfree" is to be preferred.

   One of the gray links was “torsionfree module”. We do have a minimum at torsion-free module. I have now made “torsionfree module” a redirect. Please feel free to rename the entry if “torsionfree” is to be preferred.

3. • CommentRowNumber3.
   • CommentAuthorNoam_Zeilberger
   • CommentTimeJun 6th 2017
   • PermaLink
   Author: Noam_Zeilberger
   Format: MarkdownItexI've ungrayed [[planar graph]].

   I’ve ungrayed planar graph.

4. • CommentRowNumber4.
   • CommentAuthorTodd_Trimble
   • CommentTimeJun 6th 2017
   • PermaLink
   Author: Todd_Trimble
   Format: MarkdownItexThanks, Urs, for that redirect. Noam: nice! If I have some time later I'll add the forbidden minors characterization. Also the Mac Lane criterion sounds like it might be linked to [[matroid]].

   Thanks, Urs, for that redirect.

   Noam: nice! If I have some time later I’ll add the forbidden minors characterization. Also the Mac Lane criterion sounds like it might be linked to matroid.

5. • CommentRowNumber5.
   • CommentAuthorUrs
   • CommentTimeJun 6th 2017
   • (edited Jun 6th 2017)
   • PermaLink
   Author: Urs
   Format: MarkdownItexI have touched the section-structure at _[[planar graph]]_, aiming for ease of readability. (Rearranging properties to Properties and definitions to Definitions)

   I have touched the section-structure at planar graph, aiming for ease of readability. (Rearranging properties to Properties and definitions to Definitions)

6. • CommentRowNumber6.
   • CommentAuthorTodd_Trimble
   • CommentTimeJun 6th 2017
   • PermaLink
   Author: Todd_Trimble
   Format: MarkdownItexAdded a stub in order to ungray [[sentence]].

   Added a stub in order to ungray sentence.

7. • CommentRowNumber7.
   • CommentAuthorTodd_Trimble
   • CommentTimeJun 6th 2017
   • PermaLink
   Author: Todd_Trimble
   Format: MarkdownItexI have added a bit to [[planar graph]] on the Whitney matroid characterization, and in so doing added some examples to [[matroid]]. Also I created a stub [[Kuratowski]].

   I have added a bit to planar graph on the Whitney matroid characterization, and in so doing added some examples to matroid. Also I created a stub Kuratowski.