"Source: Text/Incidence/Graph.text";
"Line: 2056";
"Date: Fri Sep 26 12:10:10 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Incidence/Graph.text, line: 2056
// Example: H162E11 ()
print "Example: H162E11";
ei := GetEchoInput();
SetEchoInput(true);
G := CompleteGraph(5);
E := EdgeSet(G);
H := InsertVertex({ E | { 1, 3 }, { 1, 4 }, { 2, 4 }, { 2, 5 }, { 3, 5 } } );
L := Union(H, CompleteGraph(1));
V := VertexSet(L);
L := L + {  { V.11, V.6 }, { V.11, V.7 }, { V.11, V.8 }, { V.11, V.9 },
           { V.11, V.10 } };
L;
SetEchoInput(ei);
