问题详情

设P:我将去打球,Q:我有时间.命题“我将去打球,仅当我有时间时”符号化为(    ).


<img src、"http://oss.ouchn.cn/ddzx/N601/jiaoyu/lssx/images/xk/5/image001.png" alt="">

<img src、"http://oss.ouchn.cn/ddzx/N601/jiaoyu/lssx/images/xk/5/image002.png" alt="">

<img src、"http://oss.ouchn.cn/ddzx/N601/jiaoyu/lssx/images/xk/5/image003.png" alt="">

<img src、"http://oss.ouchn.cn/ddzx/N601/jiaoyu/lssx/images/xk/5/image004xxx.png" alt="">

时间:2021-07-17 19:52 关键词:

答案解析

<img src="http://oss.ouchn.cn/ddzx/N601/jiaoyu/lssx/images/xk/5/image002.png" alt="">