reflexive打错了

没有人会么很着急额

I am not sure, but I think it is yes.
Let reflexive and complete be assumed.
When x大于等于y, it follows that (a) y不大于等于x or (b)y大于等于x.
When y大于等于z, it follows that (c) z不大于等于y or (d)z 大于等于y.
If 大于 is transitive, that means that x大于等于y and y不大于等于x combined with y大于等于z and z不大于等于y can lead to x大于等于z and z不大于等于x.
Then if x大于等于y and y大于等于z, from all conditions (a)(c), (a)(d), (b)(c), (b)(d), it can be shown that x大于等于z. That means 大于等于is transitive.

我也正在学习，分享一点自己的见解，期待高手解答。