例句與造句

1. When the fibration is the mapping cone, then the resulting exact ( or dually, coexact ) sequence is given by the Puppe sequence.
2. Mapping cones are famously used to construct the long coexact Puppe sequences, from which long exact sequences of homotopy and relative homotopy groups can be obtained.
3. This will induce a morphism of their long exact sequences of homotopy groups, from which ( by applying the Five Lemma, as is done in the Puppe sequence ) one can see that the map is a weak equivalence.
4. If one is now given a topological half-exact functor, the above property implies that, after acting with the functor in question on the Puppe sequence associated to " A " ?! " B ", one obtains a long exact sequence.
5. It's difficult to find puppe sequence in a sentence. 用puppe sequence造句挺難的