theorem Th142: :: GLCOLO00:142

for G2 being _Graph
for e being object
for v, w, u being Vertex of G2
for G1 being addEdge of G2,v,e,w
for t being TColoring of G2
for x, y being object st not e in the_Edges_of G2 holds
[((t _V) +* (u .--> x)),((t _E) +* (e .--> y))] is TColoring of G1