The phrase "asserted that for" is correct and usable in written English.
It can be used when introducing a claim or statement that specifies a condition or reason related to the assertion being made.
Example: "The researcher asserted that for the experiment to be valid, all variables must be controlled."
Alternatives: "claimed that for" or "stated that for".
Mr. Gould asserted that for music to retain its force and integrity, it is best played and heard in solitude.
But Mr. Wolfowitz asserted that for many years he had advocated diplomatic pressure on the North Korean government.
But he also asserted that, for at least a couple more months, he is not involved with the news service because of his role as mayor.
Reflecting on her own experiences as a student and professor, she asserted that for students to be seen as sexual objects is incalculably harmful, for to be treated as an equal is to be enfranchised as a thinker.
In an Oct. 20 letter to the Township Council, marked personal and confidential, Mr. Markowitz asserted that "for purely political reasons, I was relieved as special counsel and Doug Hansen was substituted in my place".
Just before Mr. Sarkozy, to America's displeasure, talked about European security alone with his German and Russian opposite numbers last month, an official French voice asserted that for all of the allies' interest in creating a Western "anchorage" for Russia, "fragile" indications of change there did not make for "assurance there is a permanent strategic turn" under way.
The celebrated Hardy's inequality (see [1, Theorem ] ) asserts that, for, (1.1).
He asserts that:For liberals, the problem is her "pragmatic" approach to civil liberties and support for Bush policies.
Palley asserts that but for UDI, "Beadle would have been remembered as a Commonwealth chief justice who upheld individual liberty".
They assert that mind exists for the historian and that matter exists for the natural scientist.
