(* ::Package:: *)

{
  "Name" -> "Minkowski",
  "Description" -> "4D flat spacetime in Cartesian coordinates",
  "Dimensions" -> 4,
  "Coordinates" -> {t, x, y, z}, 
  "Metric" -> {{-1, 0, 0, 0},
               {0, 1, 0, 0},
               {0, 0, 1, 0},
               {0, 0, 0, 1}},
  "SignDet" -> -1
}
