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A comment on What is the inverse of a circle?. Parent comment

Re:What is the inverse of a circle? by da_chicken on Monday January 31, 2022 @08:51AM (#30147838)
An inverse is pretty easy to generalize, and it need not rely on multiplication or the identity.

Basically: Given a function `f`, then the function `g` is the inverse of `f` if `g(f(x)) = x`.

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Re:What is the inverse of a circle? by topaz0 on Monday January 31, 2022 @09:17AM (#30148105)
It is easy to generalize, but it is not being generalized here.
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