Feb. 20, 2018, 3:31 p.m.

David Hilbert y la defensa del rigor matemático

El científico defendía que todo problema admite una respuesta mediante una prueba rigurosa de su solución o con la demostración de la imposibilidad de la misma

David Hilbert y la defensa del rigor matemático

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More bombs hit Syria's Ghouta, death toll highest since 2013 on News

Feb. 21, 2018, 1:14 a.m.

BEIRUT (Reuters) - Pro-government forces pounded the rebel-held district of eastern Ghouta outside the Syrian capital Damascus on Tuesday, in a surge of violence that a war monitor said had killed at least 250 people since Sunday night.

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Dec. 26, 2019, 1:36 a.m.

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Russia's Navalny detained as protesters point to poll fraud threat on News

Jan. 29, 2018, 4:50 a.m.

MOSCOW (Reuters) - Russian police wrestled opposition leader Alexei Navalny into a patrol wagon on Sunday moments after he appeared at a rally to urge voters to boycott what he said would be a rigged presidential election in March.

Russia's Navalny detained as protesters point to poll fraud threat

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