this post was submitted on 21 Aug 2025
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Sounds to me like this is exactly what the OP meme is referencing.
Basic math: square root only of positive numbers and 0.
Advanced math: square root of anything you want
So what’s the square root of your mom then?
Damn, hoisted by my own petard.
√∞ = ∞
You mean limit of sqrt(x) when x->+inf = +inf
You're missing the point. Math (especially advanced) is about precision and rigor. Writing sqrt of something negative is ambiguous. There are better ways of writing it as explained here https://lemmy.world/comment/18924227
Except that yes, math is about precision and rigor, and yes, the square root of negative numbers is totally allowed (https://en.wikipedia.org/wiki/Square_root#Square_roots_of_negative_and_complex_numbers) and yes, math totally allows for statements with multiple solutions.
sin(x) = 0also has infinite solutions and yet it's totally legal for x to make an equation like that.