is mentioned by

Thm* A:AdjList, T:Type, s:T, x:Vertices(adjl-graph(A)), f:(TVertices(adjl-graph(A))T). L:Vertices(adjl-graph(A)) List. (y:Vertices(adjl-graph(A)). x-adjl-graph(A)- > y (y L)) & adjl-edge-accum(A;s',x'.f(s',x');s;x) = list_accum(s',x'.f(s',x');s;L)	[adjl-edge-accum-properties]
Thm* M:AdjMatrix, T:Type, s:T, x:Vertices(adjm-graph(M)), f:(TVertices(adjm-graph(M))T). L:Vertices(adjm-graph(M)) List. (y:Vertices(adjm-graph(M)). x-adjm-graph(M)- > y (y L)) & adjm-edge-accum(M;s',x'.f(s',x');s;x) = list_accum(s',x'.f(s',x');s;L)	[adjm-edge-accum-properties]
Thm* For any graph the_obj:GraphObject(the_graph), P:(VTraversalTraversalProp), s:Traversal, i:V. (s:Traversal, i:V. (inl(i) s) (inr(i) s) P(i,s,nil)) (s1,s2,s3:Traversal, i,j:V. i-the_graph- > j paren(V;s2) (k:V. (inr(k) s2) j-the_graph- > *k) paren(V;s3) P(j,s1,s2) P(i,s2 @ s1,s3) P(i,s1,s3 @ s2)) (s1,s2:Traversal, i:V. (inr(i) s1) (inl(i) s1) paren(V;s2) l_disjoint(V+V;s2;s1) no_repeats(V+V;s2) (j:V. (inr(j) s2) i-the_graph- > *j) (j:V. i-the_graph- > j j = i (inl(j) s2) (inl(j) s1) (inr(j) s1)) P(i,[inr(i) / s1],s2) P(i,s1,[inl(i) / (s2 @ [inr(i)])])) (s':Traversal. P(i,s,s') & l_disjoint(V+V;s';s) & no_repeats(V+V;s') & paren(V;s') & (j:V. (inr(j) s') i-the_graph- > *j) & dfs(the_obj;s;i) = (s' @ s))	[dfs_induction4]
Thm* For any graph the_obj:GraphObject(the_graph), P:(VTraversalTraversalProp), s:Traversal, i:V. (s1,s2:Traversal, i:V. P(i,s1,s2) l_disjoint(V+V;s2;s1) & no_repeats(V+V;s2)) (s:Traversal, i:V. member-paren(x,y.the_obj.eq(x,y);i;s) P(i,s,nil)) (s1,s2,s3:Traversal, i,j:V. i-the_graph- > j P(j,s1,s2) P(i,s2 @ s1,s3) P(i,s1,s3 @ s2)) (s1,s2:Traversal, i:V. member-paren(x,y.the_obj.eq(x,y);i;s1) (j:V. i-the_graph- > j j = i (inl(j) s2) member-paren(x,y.the_obj.eq(x,y);j;s1)) P(i,[inr(i) / s1],s2) P(i,s1,[inl(i) / (s2 @ [inr(i)])])) (s':Traversal. P(i,s,s') & dfs(the_obj;s;i) = (s' @ s))	[dfs_induction3]
Thm* For any graph the_obj:GraphObject(the_graph), P:(VTraversalTraversalProp), s:Traversal, i:V. (s:Traversal, i:V. (inl(i) s) (inr(i) s) P(i,s,nil)) (s1,s2,s3:Traversal, i,j:V. i-the_graph- > j paren(V;s2) paren(V;s3) P(j,s1,s2) P(i,s2 @ s1,s3) P(i,s1,s3 @ s2)) (s1,s2:Traversal, i:V. (inl(i) s1) (inr(i) s1) P(i,[inr(i) / s1],s2) P(i,s1,[inl(i) / (s2 @ [inr(i)])])) (s':Traversal. P(i,s,s') & l_disjoint(V+V;s';s) & no_repeats(V+V;s') & paren(V;s') & dfs(the_obj;s;i) = (s' @ s))	[dfs_induction2]
Thm* For any graph the_obj:GraphObject(the_graph), P:(VTraversalTraversalProp), s:Traversal, i:V. (s1,s2:Traversal, i:V. P(i,s1,s2) l_disjoint(V+V;s2;s1) & no_repeats(V+V;s2)) (s:Traversal, i:V. member-paren(x,y.the_obj.eq(x,y);i;s) P(i,s,nil)) (s1,s2,s3:Traversal, i,j:V. i-the_graph- > j P(j,s1,s2) P(i,s2 @ s1,s3) P(i,s1,s3 @ s2)) (s1,s2:Traversal, i:V. member-paren(x,y.the_obj.eq(x,y);i;s1) P(i,[inr(i) / s1],s2) P(i,s1,[inl(i) / (s2 @ [inr(i)])])) (s':Traversal. P(i,s,s') & dfs(the_obj;s;i) = (s' @ s))	[dfs_induction]
Thm* For any graph the_obj:GraphObject(the_graph). (x,y:V. the_obj.eq(x,y) x = y) & (T:Type, s:T, x:V, f:(TVT). L:V List. (y:V. x-the_graph- > y (y L)) & the_obj.eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L)) & (T:Type, s:T, f:(TVT). L:V List. no_repeats(V;L) & (y:V. (y L)) & the_obj.vacc(f,s) = list_accum(s',x'.f(s',x');s;L))	[graphobj-properties]
Thm* For any graph eq:(VV), eqw:(x,y:V. eq(x,y) x = y), eacc:(T:Type. (TVT)TVT), eaccw:(T:Type, s:T, x:V, f:(TVT). L:V List. (y:V. x-the_graph- > y (y L)) & eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L)), vacc:(T:Type. (TVT)TT), vaccw:(T:Type, s:T, f:(TVT). L:V List. no_repeats(V;L) & (y:V. (y L)) & vacc(f,s) = list_accum(s',x'.f(s',x');s;L)), other:Top. mkgraphobj(eq, eqw, eacc, eaccw, vacc, vaccw, other) GraphObject(the_graph)	[mkgraphobj_wf]
Thm* For any graph t:GraphObject(the_graph). t.eaccw (T:Type, s:T, x:V, f:(TVT). L:V List. (y:V. x-the_graph- > y (y L)) & t.eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L))	[gro_eaccw_wf]
Def GraphObject(the_graph) == eq:Vertices(the_graph)Vertices(the_graph)(x,y:Vertices(the_graph). (eq(x,y)) x = y)(eacc:(T:Type. (TVertices(the_graph)T)TVertices(the_graph)T)(T:Type, s:T, x:Vertices(the_graph), f:(TVertices(the_graph)T). L:Vertices(the_graph) List. (y:Vertices(the_graph). x-the_graph- > y (y L)) & eacc(f,s,x) = list_accum(s',x'.f(s',x');s;L))(vacc:(T:Type. (TVertices(the_graph)T)TT)(T:Type, s:T, f:(TVertices(the_graph)T). L:Vertices(the_graph) List. no_repeats(Vertices(the_graph);L) & (y:Vertices(the_graph). (y L)) & vacc(f,s) = list_accum(s',x'.f(s',x');s;L))Top))	[graphobj]

In prior sections: graph 1 2

Try larger context: Graphs