(18,45)→ ¬Y;AND THUS, WE GET A CONTRADICTION AT 45

45 : - BÁO CÁO TOÁN HỌC FANS AND BUNDLES IN THE GRAPH OF PAIRWISE SUMS AND PRODUCT POTX
Toán BÁO CÁO TOÁN HỌC FANS AND BUNDLES IN THE GRAPH OF PAIRWISE SUMS AND PRODUCT POTX
45: (45,44)→ ¬z; 18: (18,80) → ¬x; 45: (18,45)→ ¬y;and thus, we get a contradiction at 45.[12, y],[19, x] :