Well, since I in fact have written it from scratch, as an original - though saying nothing new but an actual state of things -, please do find the exact quotation, so we will wonder upon the "magic" that allegedly happened.

Incidentally: I checked earlier, because I was intrigued - though probably "«for different reasons»", i.e. to compare the views - and I could not find it. I saw that there exists an "Hemingway on Writing", 2019. But I do not know. I admit I never read Hemingway (owing to queues). Though I can guess we have pretty different styles: syntactic vs paratactic.

Edit: but if that "magic" happened - /if/ -, I know the trick, and I can already tell you (rephrasing what written before): if, e.g., "a circumference is the set of points equidistant from a centre", the ways in which you can say that idea will collapse into that.

Further edit: although, if the equivalence were there word by word for that deontic definition of writing, I'd turn to the supernatural.