The Stacks project

Lemma 99.14.12. Consider the stack $\mathcal{P}\! \mathit{olarized}$ over the base scheme $\mathop{\mathrm{Spec}}(\mathbf{Z})$. Then every formal object is effective.

Proof. For definitions of the notions in the lemma, please see Artin's Axioms, Section 98.9. From the definitions we see the lemma follows immediately from the more general Lemma 99.14.11. $\square$

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