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changed the proof 2022-01-23 9cee969
Try to use L/K notation for field extensions

We could also try to consistenly use "field extension" and not just
"extension" and consistently use "ring extension", etc.
assigned tag 0AFA 2014-06-17 2676bbe
Tags: Added new tags
created statement with label lemma-torsors-over-field-torsion in examples.tex 2014-06-06 0cf0f42
More details for Bhargav's example

This is fine but there are things that can be improved:

-- why is the torsor P_0 over X_0 a scheme
-- a bit more on the deformation theory