Lemma 101.12.3. The base change of a universally submersive morphism of algebraic stacks by any morphism of algebraic stacks is universally submersive.
Proof. This is immediate from the definition. $\square$
Lemma 101.12.3. The base change of a universally submersive morphism of algebraic stacks by any morphism of algebraic stacks is universally submersive.
Proof. This is immediate from the definition. $\square$
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