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assigned tag 04E9 2010-04-08 d88cf7f
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created statement with label lemma-formally-unramified-localize in algebra.tex 2010-04-03 9c22ffa
Algebra: Infinitesimal thickenings

	If R ---> S is a formally unramified ring map, then S has a
	first infinitesimal thickening over S, which is a surjection S'
	---> S with square zero kernel satsifying a suitable universal
	property.