deletions | additions       diff --git a/First_and_simplest_a.tex b/First_and_simplest_a.tex  deleted file mode 100644  index 9fc7529..0000000  --- a/First_and_simplest_a.tex  +++ /dev/null 
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First and simplest, apart from Minkowski, of course. If we may assume  spherical symmetry, the line element can be written as:  diff --git a/layout.md b/layout.md  index fa46b12..8b81105 100644  --- a/layout.md  +++ b/layout.md 
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Minkowski_spacetime_.tex  sectionStatic_Spheri.tex  brace_ds2__leftalpha.tex  First_and_simplest_a.tex  In_Cartesian_coordin.tex  brace_ds2__.tex  brace_ds2__.tex