According to the multiverse theory is it possible that 2+2 doesn't equals 4 in another universe?

In this universe it's 4 but in another Universe could it be something else, or the same thing in all universes?

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DunningKruger · 61-69, M

In this universe, 2+2 ≠ 4 if you're counting in base 4.

DunningKruger · 61-69, M

@DunningKruger Of course, although in base 4, 2 + 2 would equal 10, the value of the symbol "10" is equal to the value of the symbol "4" in base 10, so perhaps 2+2 will always equal the value of 4 whatever it's called or written as.

I can't think of a way in which 2+2 could genuinely not equal 4, but I'm not a mathematician, or even particularly good at math, so I don't know what I'm talking about.