What Does 'Q.E.D.' Mean at the End of Mathematical Proofs?

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What does it mean q.e.d. at the end of mathematical proofs?
 
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Patrick Sossoumihen said:
What does it mean q.e.d. at the end of mathematical proofs?

Was Google no help?
 
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Yes indeed it was.
Thanks
 
Some mathematical proofs without words have been done using euclidian geometry, do those proofs hold in Riemannian Geometry alike?
 
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