theorem Th153: :: GLIB_006:149

for G2 being _Graph
for v1, e being object
for v2 being Vertex of G2
for G1 being addAdjVertex of G2,v1,e,v2 st not e in the_Edges_of G2 & not v1 in the_Vertices_of G2 & not G2 is _trivial holds
not G1 is complete