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History of tag 0C2N

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type time link
changed the proof 2023-02-28 4ecb3cb
Fix numbering

Thanks to Laurent Moret-Bailly
https://stacks.math.columbia.edu/tag/0C2N#comment-7907
changed the proof 2016-03-27 c77788d
Fix mistakes in references
changed the statement and the proof 2016-03-22 0eef22e
More about contracting exceptional curves
assigned tag 0C2N 2016-03-04 82fa846
Tags: Added new tags

Also fixed one tag pointing to the wrong spot
created statement with label lemma-contract-when-quasi-projective in resolve.tex 2016-02-29 7a3ee4c
Blowing down exceptional curves first kind