| <blockquote>Given any n + m elements <math>a_1,\ldots, a_n,b_1,\ldots, b_m \in V</math>, there is a vertex c in V that is adjacent to each of <math>a_1,\ldots, a_n</math> and is not adjacent to any of <math>b_1,\ldots, b_m</math>.</blockquote> | | <blockquote>Given any n + m elements <math>a_1,\ldots, a_n,b_1,\ldots, b_m \in V</math>, there is a vertex c in V that is adjacent to each of <math>a_1,\ldots, a_n</math> and is not adjacent to any of <math>b_1,\ldots, b_m</math>.</blockquote> |
− | 在 v </math > 中,给定任何 n + m 元素,a _ 1,ldots,a _ n,b _ 1,ldots,b _ m,v 中有一个顶点 c,它与每个 < math > a _ 1,ldots,a _ n </math > 相邻,并且不与任何 < math > b _ 1,ldots,b _ m </math > 相邻。</blockquote > | + | <blockquote>在 <math>v</math> 中,给定任何 ''n + ''m'' 个元素,<math>a_1,\ldots,a_n,b_1,\ldots,b_m\</math> 中有一个顶点 ''c'',它与每个 <math>a_1,\ldots,a_n</math> 相邻,并且不与任何 <math>b_1,\ldots,b_m</math> 相邻。</blockquote > |