>>13535095It's pretty common to say integers instead of natural numbers. Part of the problem is that natural numbers are ambiguous: some people include 0, others don't. You can say "positive natural numbers a, b, c," but this sounds weird to people who don't include 0 in the first place, and it suggests the author includes 0 as a natural number, which may conflict with other shit they write. "natural numbers n > 2" works well, but the author in this case probably wanted parity with "positive integers a, b, c."
