functor

Summary

functor ranks in the top 2% of general entities by monthly Wikipedia readership (369 views/month).^[1]

Key Facts

• functor is credited with the discovery of Samuel Eilenberg^[2].
• functor is credited with the discovery of Saunders Mac Lane^[3].
• functor's image is recorded as Commutative diagram of a functor.svg^[4].
• functor's subclass of is recorded as function^[5].
• functor's part of is recorded as category theory^[6].
• functor's Commons category is recorded as Functors^[7].
• functor's Freebase ID is recorded as /m/02yzn^[8].
• functor's topic's main category is recorded as Category:Functors^[9].
• functor's PSH ID is recorded as 7364^[10].
• functor's OmegaWiki Defined Meaning is recorded as 955376^[11].
• functor's Encyclopædia Britannica Online ID is recorded as topic/functor^[12].
• functor's different from is recorded as function object^[13].
• functor's properties for this type is recorded as P1568^[14].
• functor's properties for this type is recorded as P1571^[15].
• functor's defining formula is recorded as \begin{aligned}F(\operatorname{id}X)&=\operatorname{id}{F(X)}\F(f\circ g)&=Ff\circ Fg\end{aligned}^[16].
• functor's studied by is recorded as category theory^[17].
• functor's MathWorld ID is recorded as Functor^[18].
• functor's Treccani ID is recorded as funtore^[19].
• functor's Quora topic ID is recorded as Functor-1^[20].
• functor's JSTOR topic ID is recorded as functors^[21].
• functor's nLab ID is recorded as functor^[22].
• functor's maintained by WikiProject is recorded as WikiProject Mathematics^[23].
• functor's Microsoft Academic ID is recorded as 156772000^[24].
• functor's ProofWiki ID is recorded as Definition:Functor^[25].
• functor's in defining formula is recorded as F^[26].

Body

Works and Contributions

Credited discoveries include Samuel Eilenberg^[2], a mathematician^[27], 1913–1998^[28], of Poland^[29], awarded the Guggenheim Fellowship^[30], specialised in topology^[31] and Saunders Mac Lane^[3], a mathematician^[32], 1909–2005^[33], of United States^[34], awarded the Guggenheim Fellowship^[35], specialised in algebra^[36].

Why It Matters

functor ranks in the top 2% of general entities by monthly Wikipedia readership (369 views/month).^[1] functor has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.^[37] functor is known by 30 alternative names across languages and contexts.^[38]