You do not know whether what you're told is true or false.

你不知道别人告诉你的是真的还是假的。

《柯林斯英汉双解大词典》

The most basic form of information, Shannon argued, is whether something is true or false—which can be captured in the binary unit, or "bit", of the form 1 or 0.

香农认为，信息最基本的形式是判断事物的对错——这些信息可以用二进制单位或“位”来表示，形式为1或0。

youdao

I don't what they tell me is true or false.

我不知道他们说的是真的还是假的。

youdao

You really cannot know how much C if any C of the information that comes to you by the grapevine is true or false.

VOA: special.2009.02.22

So if you wanna do something conditionally, you generally needs to ask the question, is the following true or false.

假如想在一定条件下做一件事情，你需要判断下这个条件，来看看条件是真还是假。

哈佛公开课 - 计算机科学课程节选

There's this notion of a Boolean value named after Mr. Bool, which is just a notion of true or false.

布尔值的概念是在布尔先生之后命名的，它是一个正确或错误的概念。

哈佛公开课 - 计算机科学课程节选

The Clintons were then, and are now, absolute masters at saying something that is either true, or impossible to prove false when dissected down.

FORBES: Move up http://i.forbesimg.com t Move down

It has been amply demonstrated that it is possible for false memories to be created, whether deliberately or otherwise, which are as reliable as any true memory.

BBC: Can you trust your memory?