The Stacks project

Very slight reorg + renaming

Small things about the small affine Zariski site of a scheme

LaTeX: \Ob

	Introduced a macro

	\def\Ob{\mathop{\rm Ob}\nolimits}

	and replaced any occurence of \text{Ob}( with \Ob(. There are
	still some occurences of \text{Ob} but these are sets, not the
	operator that takes the set of objects of a category.

LaTeX: \Sch

	Introduced a new macro

	\def\Sch{\textit{Sch}}

	and replaced all the occurences of \textit{Sch} with \Sch.

LaTeX: \Spec

	Introduced the macro

	\def\Spec{\mathop{\rm Spec}}

	and changed all the occurences of \text{Spec} into \Spec.

Started tags infrastructure

	new file:   scripts/add_tags.py
	modified:   scripts/functions.py
	new file:   tags/initial_tags
	new file:   tags/tags

More about Zariski zites

	modified:   topologies.tex

Start to begin more serious stuff on topologies and algebraic spaces

	modified:   Makefile
	modified:   chapters.tex
	modified:   etale.tex
	new file:   fpqc-descent.tex
	modified:   preamble.tex
	modified:   spaces.tex
	modified:   stacks-git.htm
	new file:   topologies.tex

Introduced big/small/affine Zariski/fppf sites

	modified:   etale.tex
	modified:   sets.tex