请问各位大师：我的文章排法如下
Let A be {....}.
Theorem 2.6. {\em ....}.
{\em Proof.} ....................
We have to deal with A and its complement separately,
where A is defined as above.
^^^^^^^^
还是
We have to deal with A and its complement separately,
where A is defined above.
^^^^^^
或者是 ? 该如何修改? 感谢您....