Conservation of Mass-Energy

Theorem

The sum of the total rest mass plus the total energy in a system remains constant.



This article is complete as far as it goes, but it could do with expansion.
In particular: according to whatever text can be found
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Proof


This theorem requires a proof.
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Sources

  • 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): conservation of energy
  • 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): conservation of energy