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changed the statement 2011-05-01 e1cd457
Regular immersions

	Some results on compositions of them, etc. Also moved some
	lemmas in the chapter on algebra.
assigned tag 063K 2011-04-13 6d801de
Tags: Added new tags
created statement with label lemma-regular-quasi-regular-immersion in divisors.tex 2011-04-13 d39b78f
Relative quasi-regular immersions

	Only the notions of H_1-regular and quasi-regular immersions
	behave well with respect to base change if one doesn't assume
	the ambient space is flat over the base. Of course if the
	ambient space is flat and of finite presentation over the base
	then everything behaves as it should and all 4 notions are
	equivalent.