To assume without proof; state as a fact to be taken for granted.

假定；设定。

To claim as one's right.

要求。

To assume as a postulate or axiom (as in logic or mathematics).

【数】公设；假设。

A self-evident statement which may be taken for granted; a proposition accepted without proof.

公理；假定。

Prerequisite.

先决条件。

Fundamental principle.

基本原则。