"Source: Text/Incidence/Graph.text";
"Line: 1540";
"Date: Fri Sep 26 12:10:10 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Incidence/Graph.text, line: 1540
// Example: H162E9 ()
print "Example: H162E9";
ei := GetEchoInput();
SetEchoInput(true);
K5, V := CompleteGraph(5);
K3, V1 := sub< K5 | { V | 3, 4, 5 } >;
IsSubgraph(K5, K3);
assert $1;

V!V1!1;

V1!V!4;

K6, V, E := CompleteGraph(6);
K6;
F1 := { E | {1,2}, {3, 4}, {5, 6} };
G1, V1, E1 := K6 - F1;
G1;
SetEchoInput(ei);
