Lemma 28.11.2. Let $S$ be a scheme. The following are equivalent
$S$ is catenary,
there exists an open covering of $S$ all of whose members are catenary schemes,
for every affine open $\mathop{\mathrm{Spec}}(R) = U \subset S$ the ring $R$ is catenary, and
there exists an affine open covering $S = \bigcup U_ i$ such that each $U_ i$ is the spectrum of a catenary ring.
Moreover, in this case any locally closed subscheme of $S$ is catenary as well.
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