Definitions graph 1 2 Sections Graphs Doc

Some definitions of interest.
connect Def x-the_graph- > *y == p:Vertices(the_graph) List. path(the_graph;p) & p[0] = x & last(p) = y
Thm* For any graph x,y:V. x-the_graph- > *y Prop
decidable Def Dec(P) == P P
Thm* A:Prop. Dec(A) Prop
gr_v Def Vertices(t) == 1of(t)
Thm* t:Graph. Vertices(t) Type
graph Def Graph == v:Typee:Type(evv)Top
Thm* Graph Type{i'}

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Definitions graph 1 2 Sections Graphs Doc