Another common example USES the notion of a wrapped operation, which has become widely accepted within the industry despite the fact that there is no formal definition for the pattern.

另一个常见的示例使用包装操作的概念，尽管该模式尚未被正式定义，但在业界已得到广泛接受。

youdao

If this were all, we should have only a formal expression of the divine nature which would not really go beyond a statement of the nature of the notion itself.

如果上帝的性质就像这里所说的这样，则我们对上帝只算得到一形式的界说，这界说实际上只包含概念本身的性质。

youdao

Under the formal method, the notion of deduction in the classical logics captures the intuitively correct forms of reasoning.

在形式化方法下，经典逻辑通过严格概念推演表达正确推理形式的直观概念。

youdao

When talking politics, however, the French, like the Americans, tend to go for the more formal notion of justice.

ECONOMIST: Bad language

Formal proof is a notion developed in the early part of the 20th century by logicians such as Bertrand Russell and Gottlob Frege, along with mathematicians such as David Hilbert (who can fairly be described as the father of modern mathematics) and Nicolas Bourbaki, the pseudonym of a group of French mathematicians who sought to place all of mathematics on a rigorous footing.

ECONOMIST: Just what does it mean to prove something?

At its core it pledges the notion that the informal economy is made up of marginal activities that are distinct and largely unrelated to the formal sector.

FORBES: Informality: A Marker Of Opportunity