We have applied the short cell reduction along the first cell of length 3 of this spine:
2 = { 5, 6 } 3 = { 8 } Cell #11 = { -#17 } Cell #12 = { #16, #17, -#16, 5, 8, -5, #13, #17, -#13, -6, -8, 6, #16, -#13 }
You can also view the graph code:
Graph code : 5 V2 V4 6 V4 V2 8 V4 V4 #13 V2 V#8 #16 V2 V#8 #17 V#8 V#8