Wen, M.T. (2024) Translation Study on the Text of Exploring the Verdant Landscapes of the Tang Dynasty through Dunhuang Murals. Open Access Library Journal, 11, 1-8. doi: 10.4236/oalib.1111617 .
Proof. When are both odd, , since , so . Therefore, there must be a factor that is neither 2 nor in , and then there is also a factor that is neither 2 nor in , according to lemma 3 and lemma 4, then ...