English
The fraction ring of a domain is a field.
Русский
Дробная локализация домена образует поле.
LaTeX
$$FractionRing.field A$$
Lean4
/-- The fraction ring of a commutative ring `R` as a quotient type.
We instantiate this definition as generally as possible, and assume that the
commutative ring `R` is an integral domain only when this is needed for proving.
In this generality, this construction is also known as the *total fraction ring* of `R`.
-/
abbrev FractionRing :=
Localization (nonZeroDivisors R)