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Cours particuliers de maths à Lille
Présent sur Lille , La Madeleine , Marcq en Baroeul , Mons en Baroeul , Wasquehal , Croix , Roubaix , Lambersart , Villeneuve d'Ascq , Lomme , Loos etc..
topologie
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#Rappel #Différence sup et max #Différence entre inf et min
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#Explication
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#Vr(A) est un ouvert, forcément l'intersection infinie d'ouverts dans ce cas précis donne un fermé, car l'intersection infinie d'ouverts n'est pas nécessairement un ouvert #L'union infinie des ouverts ne fonctionnerait pas (car au final il serait ouvert) donc on utilise bien l'intersection
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Niveaux concernés :
COLLEGE
LYCEE
Toutes filières :
GENERALES
TECHNOLOGIQUES
POST-BAC
COLLEGE
LYCEE
Contact: fmontagne@gmx.fr
TAPEZ UN TITRE
DE CHAPITRE
UN THèME SOUHAITé
OU UNE FORMULE
DANS LA SECTION
"RECHERCHE"
CI-DESSOUS
EXEMPLES:
"Pythagore"
"Trigonométrie"
"Dérivation" etc...
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