Mthethwa says these have been checked and proven to be false.

VOA: standard.2010.06.02

Many of these behaviorist techniques have proven to be quite useful.

许多行为主义者所提出的技术,都被证明是非常有效的。

耶鲁公开课 - 心理学导论课程节选

Now if you look at my derivation here, there's one spot where I could have just stopped and proven my point without going through the whole thing.

如果仔细检查我的推导过程，你会发现其实,我们不用研究整个循环过程,就可以证明我们要证的公式。

麻省理工公开课 - 热力学与动力学课程节选

We have very tested and proven interventions."

VOA: standard.2010.05.11

We prove things in mathematics that have never been proven before or we find new ways to prove these theorems or what have you and we can be creative.

我们用数学去证明从未被证明过的事物,我们探寻新的方法去证明那些定理,或其他诸如此类,总之,我们具有创造力

耶鲁公开课 - 死亡课程节选