Definition 99.9.1. Immersions.

1. A morphism of algebraic stacks is called an open immersion if it is representable, and an open immersion in the sense of Section 99.3.

2. A morphism of algebraic stacks is called a closed immersion if it is representable, and a closed immersion in the sense of Section 99.3.

3. A morphism of algebraic stacks is called an immersion if it is representable, and an immersion in the sense of Section 99.3.

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