That’s a great question, and one that has actually been central to our conversation, even all the way back to the first page of your original thread. The distinction between “using” and “about” entirely changes the content of your claim, and whether it’s disagreeable or not, and how disagreeable it is. There’s a reason I’ve asked this question so many times since the beginning, so let’s go into detail on the difference.
7 is a prime number. This is a claim using arabic numerals. This is a claim using the base 10 number system. However, when I say it, I’m not making a claim ABOUT base 10, and I’m not making a claim ABOUT arabic numerals. I’m making a claim about the concept that the symbol “7” refers to. The symbol “7” refers to the a particular quantity, “o o o o o o o” ← that number of o’s is the concept that the symbol refers to. In base 10 arabic numerals, we symbolize that concept with a “7”, but in base 6 we would symbolize that concept with “11”. But my claim isn’t about the symbol, and my claim isn’t about base10, it’s about the underlying concept. Which means that I believe my claim applies to that concept, even in contexts where the symbol doesn’t apply.
So 7 in base 10 is prime, but 11 in base 6, which refers to the same quantity, is also prime. And it’s prime for the same reason - because it refers to the same concept, and the primacy of that concept is what I’m claiming. Any symbol that refers to that concept has the property that I’m claiming.
On the other hand, “7 is pronounced seven” is no longer a claim about the concept of the quantity. That’s a claim about language and about the symbols that we use to discuss numbers and values. I can’t take the concept that 7 refers to and apply the same statement across the board, “11 in base 6 is pronounced 7”. The scope of this claim is entirely different from the scope of the primacy claim. It’s disconnected from the concept, and entirely connected to other things.
“1/3 is impossible”. This is apparently your claim. There’s a few different things that this claim could be ABOUT.
It could be about the base 10 number system – you could be saying “you can’t divide 1 by 3 while you’re using base 10”.
It could be about reality, in some tangible or more abstract sense. You could be saying “real things can’t be divided into 3 pieces.”
We’ve previously established, I think, that reality, or even the platonic perfect “reality” that we use for thought experiments, doesn’t have any bias towards or preference for base 10. That means that those two claims are not equivalent. They’re not interchangable. They may both be true, but if they were both true, they’d be true for entirely different and unrelated reasons, because they’re different claims from each other.
“You can’t divide an egg into 3 pieces” vs “You can’t divide an egg into 3 pieces in base 10”. These don’t mean the same thing as each other. An egg exists in reality. Reality has no bias towards any particular base. In fact, I would say that the second phrase doesn’t have meaning at all. You don’t have eggs in base 10. Base 10 has no frame of reference for the thing we’re referring to as an “egg”.
So, are you making a claim about eggs? And thus, is your claim about eggs entirely independent of what base you’re doing the math in?
Or are you making a claim about base 10, and not eggs, and therefore you CAN divide by 3 in base 6, for example?
You’ve deliberately made the conversation about physical objects throughout all your conversations, which makes me think that you’re not making a claim about Base 10, but a claim about reality, or a claim about eggs. But sometimes, you seem to switch your stance and take a more modest approach, that your claims really are claims about base 10, and not about eggs or about reality. Getting a grasp of exactly what your claim is is vital for any conversation about it. That’s why I’ve always focused on that, from the beginning.
So, what’s the nature of your claim? What is it about?