Lemma 26.14.2. In Lemma 26.14.1 above, assume that all $X_ i$ are schemes. Then the resulting locally ringed space $X$ is a scheme.
Schemes can be glued to give new schemes.
Proof. This is clear since each of the $U_ i$ is a scheme and hence every $x \in X$ has an affine neighbourhood. $\square$
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Comment #840 by Johan Commelin on
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