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History of tag 04PT

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type time link
changed the statement 2015-01-06 b23f68f
Slogans by David Corwin
changed the proof 2013-12-22 e179438
LaTeX

Introduced a macro

\def\Ker{\text{Ker}}

and replace all occurrences of \text{Ker} with \Ker
assigned tag 04PT 2010-06-02 90566d1
Added new tags
created statement with label lemma-pure-ideal-determined-by-zero-set in algebra.tex 2010-06-02 1369213
Pure ideals

	Added a section to the algebra chapter on pure ideals. An ideal
	is pure when the quotient of the ring by it is flat. Pure ideals
	correspond 1-1 with closed subsets which are stable under
	generalizations.