[[!redirects concrete dagger 2-posets]] #Contents# * table of contents {:toc} ## Definition ## A concrete dagger 2-poset $C$ is a [[dagger 2-poset]] with a [[set]] $El(A)$ for every object $A:Ob(C)$ and a function $(-)((-)): Map(A,B) \times El(A) \to El(B)$ for [[map in a dagger 2-poset|map]] evaluation for elements of objects $A:Ob(C)$ and $B:Ob(C)$. ## See also ## * [[concrete category]] * [[concrete precategory]] * [[Rel]] * [[SEAR]] * [[Categorical SEAR]]