例句與造句

1. This is a finite union of circles so has finite area.
2. One is also allowed to take finite unions.
3. Every projective algebraic set may be uniquely decomposed into a finite union of projective varieties.
4. Similarly to algebraic subvarieties, finite unions and intersections of semialgebraic sets are still semialgebraic sets.
5. A d-constructible set is a finite union of closed and open sets in the Kolchin topology.
6. It's difficult to find finite unions in a sentence. 用finite unions造句挺難的
7. A 0-dimensional open ( and closed ) cell is a covered by a finite union of open cells.
8. If a finite topological space is complement of a point is a finite union of closed points and therefore closed.
9. An algebraic set being a finite union of algebraic varieties, its dimension is the maximum of the dimensions of its components.
10. In fact, a scheme is quasi-compact if and only if it is a finite union of open affine subschemes.
11. The space is, however, a compact space, since it is covered by a finite union of the " U"
12. Then their union, f ^ {-1 } ( U ) is also closed, being a finite union of closed sets.
13. Any finite union and intersection of Jordan measurable sets is Jordan measurable, as well as the set difference of any two Jordan measurable sets.
14. Since we have a definable set that isn't a finite union of points and intervals, this structure is not o-minimal.
15. A subset of N ^ n is said to be "'semilinear "'if it is a finite union of linear sets.
16. The set is clearly convex, but cannot be written as a finite union of points and intervals whose endpoints are in " R ".
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