Have you proof of this?

你有证据吗？

youdao

You have any proof of this, Mr. Linden?

对此你可有证据，林登先生？

youdao

We will also see another proof of this formula, using changes of variables, next week.

下周我们从变量变化的观点，来看证明这个公式。

youdao

The Grand Canyon is proof of the power of this great river.

VOA: special.2009.08.12

So again, this is how we kind of feel the article proof.

我们又一次,证明了大脑的关键性。

耶鲁公开课 - 死亡课程节选

Professor Yoshino explains. "Shakespeare calls this a problem of ocular proof, the idea that we need to see evidence before we believe in it -- and that,oftentimes, when metaphysical questions of guilt or innocence are difficult for us to answer, we have a tendency to reduce them to questions that pertain to physical evidence.

VOA: special.2011.06.06

If you need proof of this, compare a TV show from the 70s to one today.

FORBES: Why the Internet Is Making Us Smarter--in One Way

As proof of this, Pynchon sites that women are now 50% of all law students.

FORBES: Cats Are Better Negotiators Than Dogs

One proof of this companys marketing savvy is this credit card that was given to yours truly.

FORBES: Fact and Comment