As protests following the death of George Floyd engulfed country in summer 2020, Americans watched shock as members press were beaten, fired upon, and arrested while covering mass demonstrations. Even charges against these reporters have largely been dropped, several media back, filing lawsuits asserting their civil rights. The cases that emerged from — what one federal judge termed “Floyd Case...

We give a correspondence between enriched categories and the Gauss-Kleene-Floyd-Warshall connection familiar to computer scientists. This correspondence shows this generalization of categories to be a close cousin to the generalization of transitive closure algorithms. Via this connection we may bring categorical and 2-categorical constructions into an active but algebraically impoverished aren...

This formulation of the Roy-Floyd-Warshall algorithm for the transitive closure bypasses matrices and arrays, but uses a more direct mathematical model with adjacency functions for immediate predecessors and successors. This can be implemented efficiently in functional programming languages and is particularly adequate for sparse relations.