graph 1 2 Sections Graphs Doc

Def Id == Id

is mentioned by

Def Graph(x,y:T. R(x;y)) == < vertices = T, edges = {p:(TT)| R(1of(p);2of(p)) }, incidence = Id > [rel-graph]

In prior sections: fun 1 list 1 graph 1 1

Try larger context: Graphs

graph 1 2 Sections Graphs Doc