例句與造句

1. A quasi-finite proper morphism locally of finite presentation is finite.
2. It is even algorithmically undecidable whether a given finite presentation defines a nontrivial group.
3. Let " f " be quasi-finite, separated and of finite presentation.
4. If both are finite it is said to be a "'finite presentation " '.
5. Note the image of " g " is a finitely presented if it admits a finite presentation.
6. It's difficult to find finite presentation in a sentence. 用finite presentation造句挺難的
7. Nielsen, and later Bernhard Neumann used these ideas to give finite presentations of the automorphism groups of free groups.
8. A special case is that of " balanced presentations ", those finite presentations with equal numbers of generators and relators.
9. A group which has a finite presentation with a single relation is called a "'one-relator group " '.
10. It was shown by that it is an undecidable problem to determine, given a finite presentation of a group, whether the group is Hopfian.
11. Furthermore, being a base change means that extension of scalars preserves properties such as being of finite type, finite presentation, separated, affine, and so on.
12. Chevalley's theorem ( EGA IV, 1.8 . 4 . ) states : Let f : X \ to Y be a morphism of finite presentation of schemes.
13. Any finite presentation of a group can be realized as a 2-complex, and can be realized as the 2-skeleton of a 4-manifold ( or higher ).
14. Note that coherence is a strictly stronger condition than finite presentation : \ mathcal { O } _ X is always finitely presented as a module over itself, but it is not always coherent.
15. This is due to the unsolvability of the word problem for groups, or more precisely, the triviality problem ( given a finite presentation for a group, is it the trivial group ? ).
16. The usual proof of the theorem uses a sequence of HNN extensions starting with " R " and ending with a group " G " which can be shown to have a finite presentation.
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