Science Memes

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positivity (mander.xyz)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 8 points 6 months ago (1 children)

I don't understand this argument. I've heard high school teachers decree it as a mathematical truth before.

Do we all agree absolute value is a function from reals to reals? If so, the absolute value of any real number is nonnegative. It can be zero or any positive numbers.

Case closed, right?

[–] [email protected] 1 points 6 months ago

It's like taking a signed int and turning it into an unsigned int though. It doesn't become positive it just loses its sign.