Abelian Categories

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Multiple Choice

In an Abelian category, what is the significance of an exact sequence?

  1. It allows for the precise tracking of morphisms and their relationships.
  2. It ensures the existence of a unique kernel and cokernel for each morphism.
  3. It facilitates the construction of long exact sequences, providing a powerful tool for studying homology.
  4. All of the above.
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