Definition 67.47.7. Let S be a scheme. Let X and Y be algebraic spaces over S with |X| and |Y| irreducible. We say X and Y are birational if X and Y are isomorphic in the category of irreducible algebraic spaces over S and dominant rational maps.
Definition 67.47.7. Let S be a scheme. Let X and Y be algebraic spaces over S with |X| and |Y| irreducible. We say X and Y are birational if X and Y are isomorphic in the category of irreducible algebraic spaces over S and dominant rational maps.
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