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(→Definition: reciprocal of the metric tensor) 
m (more commonly, the inverse. →Definition) 

* ''G''<sup>μν</sup> is the [[Einstein tensor]] (which is constructed from the metric)
* ''g''<sup>μν</sup> is the
* ''g'' = det(''g''<sub>μν</sub>) is the [[determinant]] of the metric tensor and is < 0. Hence its appearance as <math>g </math>.
