let am, bp, cm be non pair set ; :: thesis: for x, y, z being set holds InputVertices (BitGFA2Str am,bp,cm) misses InnerVertices (BitGFA1Str x,y,z)
let x, y, z be set ; :: thesis: InputVertices (BitGFA2Str am,bp,cm) misses InnerVertices (BitGFA1Str x,y,z)
set S1 = BitGFA2Str am,bp,cm;
set S2 = BitGFA1Str x,y,z;
not InputVertices (BitGFA2Str am,bp,cm) is with_pair by GFACIRC1:117;
hence InputVertices (BitGFA2Str am,bp,cm) misses InnerVertices (BitGFA1Str x,y,z) by FACIRC_1:5, GFACIRC1:77; :: thesis: verum