An extension ring 
such that every element of 
is integral over 
.
Integral Extension
See also
Algebraic Extension, Finite Extension, Integral Closure, Integrally ClosedThis entry contributed by Margherita Barile
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Cite this as:
Weisstein, Eric W., with contributions by Margherita Barile. "Integral Extension." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/IntegralExtension.html