Lemma 79.4.3. Let $S$ be a scheme. Let $\mathcal{P}$ be a property as in Definition 79.4.1, and assume $\mathcal{P}$ is stable under composition. Let

be maps of presheaves on $(\mathit{Sch}/S)_{fppf}$. If $a$, $b$ are representable by algebraic spaces and has $\mathcal{P}$ so does $b \circ a$.

## Comments (0)