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changed the proof 2021-09-13 cb2da13
Fix a proof in more-algebra

Thanks to Dan Dore
https://stacks.math.columbia.edu/tag/07NQ#comment-6484
assigned tag 07NQ 2012-04-27 0cd691b
Tags: Added new tags
created statement with label proposition-fs-flat-fibre-fs in more-algebra.tex 2012-04-25 854eec8
More results on formal smoothness

	In particular the characterization of formally smooth maps
	between Noetherian local rings in terms of flatness and fs
	fibre. The proof is a bit long (about 2 pages) but it isn't
	clear how to split it further without introducing substantially
	more notation.