I could be completely wrong, but I doubt any of my (US) professors would reference an ISO definition, and may not even know it exists. Mathematicians in my experience are far less concerned about the terminology or symbols used to describe something as long as they’re clearly defined. In fact, they’ll probably make up their own symbology just because it’s slightly more convenient for their proof.
From what i understand, you can pay iso to standardise anything. So it’s only useful for interoperability.
Yeah, interoperability. Like every software implementation of natural numbers that include 0.
How programmers utilize something doesn’t mean it’s the mathematical standard, idk why ISO would be a reference for this at all