The phrase "affirm not" is correct and can be used in written English, though it is somewhat archaic or formal.
You can use it in contexts where you want to express a negation of affirmation, often in philosophical or literary discussions.
Example: "In this debate, I must affirm not the validity of the argument presented."
Alternatives: "do not affirm" or "reject the affirmation".
"Now is the time to affirm not only the immorality of nuclear weapons, but the immorality of their possession, thereby clearing the road to abolition," the Vatican said.
Blandly to affirm not just one Reagan ideologue, but, if any other Justices were to retire, conceivably as many as 5, would be very difficult to reconcile with anything the Constitution permits or requires.
With the world's nations preparing for the opening this week of the United Nations General Assembly, it is time to affirm not only the facts of this case but the value of facts themselves — to declare our certainty that some things are true and others are not.
However, access to the data generated requires researchers to sign a data use agreement in which they affirm not to redistribute the data and to cite the ADNI in a manner deemed appropriate by an ADNI Data and Publications Committee [37].
Having at least one other person in the decision-making loop who has to positively affirm not just the president's identity but has to also agree that the decision would not be a bad thing.
"And I was looking forward to having my husband Jim [Ready] hold the Constitution, not the Bible, and affirm, not swear, that I was going to be a wonderful senator".
The basic principle was affirmed, not replaced.
We can find cures with life-affirming, not life-destroying, methods that are becoming more promising with each passing day".
The forty-fifth President affirmed not the continuity of America's Democratic progress but his contempt for its non-Trumpian past.
There are "these virtual-reality silos — I mean, we can curate our news sources in such a way that our views are always affirmed, not always informed.
It affirms not just your faith in human nature, but also in something more mystical, something to do with casting your bread upon the waters.
