The phrase "asserted then that" is correct and usable in written English.
It can be used when referring to a statement or claim made at a specific time in the past.
Example: "The researcher asserted then that the findings would have significant implications for future studies."
Alternatives: "claimed at that time that" or "stated then that".
The prosecutor, William H. Kennedy, asserted then that C.I.A. officials had told him that Mr. Nazar Haro was their most important source in Mexico and Central America.
Mr. Lee, who is 55, pleaded guilty in April to Federal charges of engineering more than $15 million in frauds at Hyfin and he asserted then that he made the $30,000 payoff to Mr. Turoff.
In addition to accusing the president of intellectual elitism, he asserted then that Obama "wants you to go to college.
If it is asserted then that the ATP per R1 ratio cannot decrease as higher R1 oligomers are formed, the space of 2088 models reduces to 1420 models, but the calculations of Fig. 7 still yield the same conclusion, i.e. no h-site existence (Fig. 10).
While Wilde, 2000 asserts, then, that univocal causality is subsumed in analogical causality, Eckhart's theory is exactly the opposite.
Looking to the studies of Gian Balsamo and J. J. Altizer, the book asserts, then, that the typological pattern of sacrificial death that engenders life is repeated throughout literature as the ecstatic and liberating transformation of death into understanding, self-sacrifice into love, and pain into the full experience of the body.
but... the voluntary suspension would be continued for the time being". Neither the U.S. nor the Soviet Union asserted then or after that this declaration constituted a "breach" of the moratorium.
He asserted incorrectly then that it had allowed Russia to continue to produce nuclear warheads while the United States could not.
But Mr. Ackman then asserts that if that is the case, no rational person outside the distribution network would ever purchase product at the full retail price.
Some climate skeptics, members of the media, and elected officials then asserted that these various events "proved" that climate change is not happening or is a hoax.
The accompanying press guidance then asserts: "That means the law of the country in which the claim arises are used -- in tQs case Romanian law".
