Changing someone's mind is very difficult, that's why I like puzzles most people get wrong: to try to open their mind. Challenging the claim that 2+2 is unequivocally 4 is one of my favorites to get people to reconsider what they think is true with 100% certainty.
2+2 = not what you think
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Notes -
It may be represented that way, but they are not the same thing.
You yourself accepted here that
4 (sa)is not the same statement as4 (mod 4).So your claim that
4 (sa) = 0 (mod 4)is just plainly false.4 and 0 are equivalent as representants of the residue class. If you can write down 2+2 where 2 refers to a residue class, the answer can be written down as 4.
How many times do I have to ask you to stop misquoting me?
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