Exercices du § 1. Ensembles ouverts; voisinages; ensembles fermés

Bourbaki sets these at the end of § 1. Ensembles ouverts; voisinages; ensembles fermés.

10 exercises. No solution has been written for any of them yet.

• Exercice 1
• Exercice 2
• Exercice 3
• Exercice 4
• Exercice 5
• Exercice 6
• Exercice 7
• Exercice 8
• Exercice 9
• Exercice 10