Open arrowd opened 6 years ago
constructive reals Cant be turned into a finite representation in finite time.
a simple example is PI, clearly a Computable / constructive real.... theres no rational number equal to pi!
more broadly, theres no decidable way to know if theres a finite rational rep from the current CReal rep
I see there is a implementation for
instance Real CReal
, but itstoRational
implementation is commented out:What's wrong with it?