Definition:Rationally Expressible Number
Jump to navigation
Jump to search
Definition
A number is rationally expressible if and only if its square is rational.
Thus, the set of the rationally expressible numbers is:
- $\set {x \in \R : x^2 \in \Q}$
Linguistic Note
The term rationally expressible was invented by $\mathsf{Pr} \infty \mathsf{fWiki}$.
As such, it is not generally expected to be seen in this context outside $\mathsf{Pr} \infty \mathsf{fWiki}$.