The phrase "assert it as a" is correct and usable in written English.
You can use it when you want to declare or state something as a particular type or category, often in a formal or academic context.
Example: "In her thesis, she chose to assert it as a fundamental principle of ethics."
Alternatives: "declare it as a" or "state it as a".
She is asserting it as a definitive fact.
After all, Ken Clarke asserted it as "the hallmark of a civilised society" even as he implemented his cuts package.
"So I can imagine a scenario where we have a third party verify that our system works the way we assert it does," much as an auditor reviews a company's financial reporting.
[103 Wn.2d 653] If the refusal is held valid, defendant asserts it acts as a complete bar to plaintiff's wrongful death claim.
Iran has insisted that as a precondition for serious negotiations, the world should lift all the sanctions and recognize Iran's "right to enrich," which Iran asserts it has as a signatory to the Nuclear Nonproliferation Treaty.
Since at least the 1980s Pacific Northwest Ballet has been among the leading exponents of Balanchine choreography in the world; this program asserts it also as a vehicle for the new.
The federal government, which insures pension plans, included the additional information when it asserted its claims as a creditor in May.
But if the Taliban's attack this week did consist mainly of sending small bands to harass police posts, as the coalition asserted, it would hardly count as a significant victory for either side.
Its traditional role as the port for greater Tokyo having declined, it is asserting its independence as a hub for shopping, conventions, and the like.
Furthermore, the e-mail fails to discuss what negative keywords Plaintiff would institute (although Plaintiff asserts it agreed to implement "Lens.com" as a negative keyword), dates of implementation, what parties were agreeing to the terms, how those terms would be applied to affiliates, and so forth.
