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Personally I believe that all math is connected, and just different aspects of the same math, so there is only one, like a monotheistic God.
There exist an infinite number of unprovable-but-true statements for any given set of axioms of sufficient complexity (e.g. arithmetic). I find it conceivable that having "more than one mathematics" would be quite practical!
f”{n} result{‘s’ if n == 1 else ‘’}”n>1 is even shorter than n!=1
(also you wrote == instead of != your code is backwards)
I’m surprised about the higher in the conversation comment about Greek as the dual exists in Modern Greek only as a grammatical feature of the written form of the word for “two” and is rare in classical Greek.
Slovenian appears to have a special word form for numerals ending in "2". Looks like it's a remnant of the dual number that existed in early Slavic languages: https://study.2tm.eu/blogs/the-dual-number-in-the-slovenian-... And it is indeed unusual!
* 1 dan
* 2 dneva
* 3 dnevi
* 5 dni
https://www.unicode.org/cldr/charts/latest/supplemental/lang...
It’s not a proof at all, by anything. It’s a description of the singular / plural distinction in English.
> Linguistic tautology is not mathematics. That way lies madness.
Singular vs. plural is not a mathematical fact, it’s a linguistic fact. I’m sorry you consider that bollocks.
It absolutely does denote plurality. "0 threes" uses "three" in the plural form and "1 three" uses "three" in a singular form.
Thus is not a question about math, but about linguistics.