set G2 = the addAdjVertex of G,v,e,w;
set G3 = the addAdjVertex of G,v,e,w | _GraphSelectors;
take
the addAdjVertex of G,v,e,w | _GraphSelectors
; ( the addAdjVertex of G,v,e,w | _GraphSelectors is Supergraph of G & the addAdjVertex of G,v,e,w | _GraphSelectors is addAdjVertex of G,v,e,w & the addAdjVertex of G,v,e,w | _GraphSelectors is plain )
thus
( the addAdjVertex of G,v,e,w | _GraphSelectors is Supergraph of G & the addAdjVertex of G,v,e,w | _GraphSelectors is addAdjVertex of G,v,e,w & the addAdjVertex of G,v,e,w | _GraphSelectors is plain )
by GLIB_000:128, GLIB_006:124; verum