The phrase "add fact" is correct and usable in written English.
It can be used when instructing someone to include a specific piece of information or detail in a discussion or document.
Example: "In your report, please add fact that supports your argument about climate change."
Alternatives: "include information" or "insert detail".
("Add Fact Checking to your list of chores," the founder of The New Yorker instructed an editor, not long afterward).
("Add Fact Checking to your list of chores," the founder of The New Yorker instructed an editor, not long afterward). In 1929, Luce hired as an editor of his new magazine, Fortune, a poet named Archibald MacLeish.
Today we can continue to add facts and images to the accumulating pile.
Add facts about the higher-earning career path (a small minority of) front-line workers have built.
The projected underground education center will add facts and context to make the memorial more specifically about Vietnam — narrower and less universal.
Against that we have here the added fact of the report that Williams had a gun on his person...
The added fact that some of these seductions, particularly his hay barn encounter with Pussy Galore, arguably resemble sexual assault or rape has been commented on before.
"The added fact that the Equifax CEO was just awarded a $7.5 million contract with the IRS made Rich Uncle Pennybags all the more relevant".
That network has added facts and commentary — usually humorous — along the borders of the screen in each episode.
In a Q&A with the site's founder, Arianna Huffington, Karp asks if commenters will be acting journalistically, as in adding facts to the story.
Paul Preston of the London School of Economics, one of the great historians of Spain, has added facts to the debate with his book The Spanish Holocaust, published next month.
