Wikimedia neighborhood · Wikidata observation Observed Graph-projection

crossed module

generalization of a G-module; algebraic model of a 2-group

Provider: Wikidata. These recorded connections are observations, not Counterpedia claims. They do not establish source support.

Data and provenance

Provider: Wikidata · Entity ID: Q5188565

Release: sha256:f33228901a35b0683356002a46df9ceb11f399d05f17abb5c7c78256cbf38ba7

Graph membership is not truth. Each relation below is an observed typed edge the local Wikimedia graph bundle already materialized — not a corroborated, verified, or admitted claim. Bounded to 40 relations via an offset-index lookup (offset_index_binary_search), never a full scan of the bundle.Serving a published subset: joined entities + 1-hop neighborhood of 35,994 exact Wikipedia–Wikidata title matches. A subject that is not itself in that subset carries only the relations the subset recorded for it, so a small count here is the published scope and not a complete relationship inventory.

Development requests are not available on this deployment. The observed entity and its graph links remain readable.

1-hop relations (13)

Observed adjacency only. Each spoke is a typed edge already materialized in the graph, labeled by its recorded predicate — graph proximity is not support, corroboration, or admission. The links below are the accessible, no-JavaScript path to the same neighbors.

Follow a connection

Grouped by a fixed presentation taxonomy for legibility only. The grouping asserts no rank, truth, support, or standing — every observed edge is carried, none reordered by importance.

Identity & relations (1)

→ subclass of (P279)algebraic structureObserved
Relationship details
Provider: Wikidata · Property: P279 · Direction: outgoing · Entity ID: Q205464

Other connections (12)

→ Relationship name unavailable (P7235)(\cdot)Observed
Relationship details
Provider: Wikidata · Property: P7235 · Direction: outgoing
→ Relationship name unavailable (P1482)https://mathoverflow.net/tags/crossed-modulesObserved
Relationship details
Provider: Wikidata · Property: P1482 · Direction: outgoing
→ Relationship name unavailable (P61)J. H. C. WhiteheadObserved
Relationship details
Provider: Wikidata · Property: P61 · Direction: outgoing · Entity ID: Q378553
→ Relationship name unavailable (P7235)\operatorname{Aut}(-)Observed
Relationship details
Provider: Wikidata · Property: P7235 · Direction: outgoing
→ studied by (P2579)homotopical algebraObserved
Relationship details
Provider: Wikidata · Property: P2579 · Direction: outgoing · Entity ID: Q5891810
→ Relationship name unavailable (P575)1941Observed
Relationship details
Provider: Wikidata · Property: P575 · Direction: outgoing
→ Relationship name unavailable (P2534)\begin{aligned}d\colon H&\to G \\ (\cdot)\colon G &\to \operatorname{Aut}(H) \\ d(g\cdot h) &= gd(h)g^{-1} \\ d (h)\cdot h' &= hh'h^{-1} \end{aligned}Observed
Relationship details
Provider: Wikidata · Property: P2534 · Direction: outgoing
→ Relationship name unavailable (P6104)WikiProject MathematicsObserved
Relationship details
Provider: Wikidata · Property: P6104 · Direction: outgoing · Entity ID: Q8487137
→ Relationship name unavailable (P7235)dObserved
Relationship details
Provider: Wikidata · Property: P7235 · Direction: outgoing
→ Relationship name unavailable (P7235)HObserved
Relationship details
Provider: Wikidata · Property: P7235 · Direction: outgoing
→ studied by (P2579)higher category theoryObserved
Relationship details
Provider: Wikidata · Property: P2579 · Direction: outgoing · Entity ID: Q5758318
→ Relationship name unavailable (P7235)GObserved
Relationship details
Provider: Wikidata · Property: P7235 · Direction: outgoing

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