逻辑学中命题有哪些形式哪些种类

一、命题的种类
1、按关系即按命题主谓项之间的关系分类：直言命题、假言命题（后件主谓项的联系以前件为条件）和选言命题（谓项之间对主项有选择关系）。
2、从质的角度分：肯定命题、否定命题。
3、从量的角度分：全称命题，包括单称命题、普遍命题和特称命题。
4、从命题的相互关系分：原命题、逆命题、否命题、逆否命题。
二、命题的形式
1、对于两个命题，如果一个命题的条件和结论分别是另外一个命题的结论和条件，那么这两个命题叫做互逆命题，其中一个命题叫做原命题，另外一个命题叫做原命题的逆命题。
2、对于两个命题，如果一个命题的条件和结论分别是另外一个命题的条件的否定和结论的否定，那么这两个命题叫做互否命题，其中一个命题叫做原命题，另外一个命题叫做原命题的否命题。
3、对于两个命题，如果一个命题的条件和结论分别是另外一个命题的结论的否定和条件的否定，那么这两个命题叫做互为逆否命题，其中一个命题叫做原命题，另外一个命题叫做原命题的逆否命题。

扩展资料
原命题、否命题、逆命题和逆否命题的关系为：
1、四种命题的相互关系：原命题与逆命题互逆，否命题与原命题互否，原命题与逆否命题相互逆否，逆命题与否命题相互逆否，逆命题与逆否命题互否，逆否命题与否命题互逆。
2、四种命题的真假关系：
（1）两个命题互为逆否命题，它们有相同的真假性。
（2）两个命题为互逆命题或互否命题，它们的真假性没有关系。(原命题与逆否命题同真同假，逆命题与否命题同真同假）
参考资料来源：搜狗百科-命题

仓库出入库单上的验收，经手等签字问题

我觉得你提出的这个问题很好的，之前也有一个网友提出由于签字的问题，最后责任全由他一个人承担，这方面我还是觉得你的想法很对，职责一定要分清，不要因为一时地怕麻烦，到最后全部责任都由你自己一个承担。

以my troublesome apartment为题的英语作文

I rented an apartment when I was studying at my university. It was a very annoying apartment.
First, My roomates were a party animal. They hold parties every night after they drank at the bar. They were loudly chatting at the living room, and they were disrupting my sleeping. Moreover, My roomates were not likely to clean up the mess after they hold a party. The apartment was look like a pigsty as a result the landlord was very angry and kicked my roomates out of the apartment.
Second, my apartment dint have a fridge and washing machine. It made me very difficult to clean up my clothes and cook the food. Therefore, I had to wash my clothes by hand, and I had to eat out every day.
Right now, I have my own apartment. I have learnt lots of lessons from my troublesome apartment, and made my place a nice and clean apartment.