deletions | additions       diff --git a/The_derivatives_of_t.tex b/The_derivatives_of_t.tex  deleted file mode 100644  index f903b0d..0000000  --- a/The_derivatives_of_t.tex  +++ /dev/null 
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The derivatives of the four-metric can be determined from the  derivatives of the scalar and vector:  diff --git a/layout.md b/layout.md  index d8e2ba5..5634354 100644  --- a/layout.md  +++ b/layout.md 
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For_the_special_case.tex  Then_in_the_lab.tex  ___gamma.tex  The_derivatives_of_t.tex  brace_ds2__.tex  brace_gamma_i_j_.tex  subsectionzBoosted_I.tex