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Continue to ChatAxioma paralelelor. Axioma lui Euclid. Relatia de tranzitivitate https://profesorjitaruionel.com/2018/04/19/axioma-paralelelor-axioma-lui-euclid-relatia-de-tranzitivitate/
Axioma paralelelor. Axioma lui Euclid. Relatia de tranzitivitate https://profesorjitaruionel.com/2018/04/19/axioma-paralelelor-axioma-lui-euclid-relatia-de-tranzitivitate/