assertion
[ə'sɚʃən]
n. 言,

[] 宣, 言, 维护

1. He spoke with assertion.
   坚。
2. I seriously question a number of your assertions.
   坚，点甚疑。
3. Such a questionable assertion is sure to provoke criticism.
   种问题招致非议。

assertion
[ noun ]

1. a declaration that is made emphatically (as if no supporting evidence were necessary)

<noun.communication>

2. the act of affirming or asserting or stating something

<noun.communication>

Assertion \As*ser"tion\, n. [L. assertio, fr. asserere.]
1. The act of asserting, or that which is asserted; positive
declaration or averment; affirmation; statement asserted;
position advanced.

There is a difference between assertion and
demonstration. --Macaulay.

2. Maintenance; vindication; as, the assertion of one's
rights or prerogatives.