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Hace 17 horas · Coptic (Bohairic Coptic: ϯⲙⲉⲧⲣⲉⲙⲛ̀ⲭⲏⲙⲓ, Timetremǹkhēmi) is a group of closely related Egyptian dialects, [2] representing the most recent developments of the Egyptian language, [2] [4] and historically spoken by the Copts, starting from the third century AD in Roman Egypt. [1] Coptic was supplanted by Arabic as the ...
Hace 17 horas · Definition and basic properties. General relativity is a metric theory of gravitation. At its core are Einstein's equations, which describe the relation between the geometry of a four-dimensional pseudo-Riemannian manifold representing spacetime, and the energy–momentum contained in that spacetime. [46]
