Over

The term "over" is commonly used in mathematical exposition as a synonym for "in the domain of." So, for example, "Let f be a function over the reals" means "Let f be a function f(x) defined for x in R."

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Cite this as:

Weisstein, Eric W. "Over." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Over.html

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