The phrase "assert as if" is correct and usable in written English.
It can be used when someone is making a statement or claim that is presented in a way that suggests it is true, even if it may not be.
Example: "He tends to assert as if he knows everything about the subject, but his knowledge is quite limited."
Alternatives: "claim as though" or "declare as if".
It was asserted as if it were a fact and that it could be slipped through without approval.
Hysterical fears are confidently asserted as if proven beyond doubt while potential benefits, often based on considerable research and experience, are dismissed or ignored.
"We've not come all this way -- through tragedy, and trial and war -- only to falter and leave our work unfinished," he asserted, as if all those Democrats racing from Iowa to New Hampshire in the middle of the night were crying out to the voters: "Falter!
It's difficult to assert, as Harris does, that if people just think about it enough, they will come to understand that their most basic sense of consciousness is not really there.
"The United States is desperately trying to assert leadership, as if it were 10 years ago, when the U.S. set the agenda," said Kenneth S. Rogoff, an economist at Harvard and another former chief economist of the fund.
He simply asserts them, as if they were part of his autobiography.
Greenberg was accused of child abuse for the photo shoots; Stefani, however, commented, "I didn't think 'child abuse'—I just thought, 'That's beautiful.' Every kid cries," she asserts, and as if on cue, Kingston pipes up in the next room.
Movie acting is rooted in innate personal charisma, but the actors in "Fences" (who have plenty of it) assert their presence as if to fill out the space of the stage with the force not of their personal character but of the characters they play.
Finally, we assert that if and, then.
Instead Philadelphia's midfield began to assert itself as the team looked to outlast, if not outplay, their opponents.
