Ensembles et applications Flashcards

1
Q

Définir des ensembles

A
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2
Q

. Inclusion, union, intersection, complémentaire

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3
Q

Règles de calculs

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4
Q

. Produit cartésien

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5
Q

Définr une application

A
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6
Q

Égalité. Deux applications

A
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7
Q

• Égalité. Deux applications f , g :

A
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8
Q

Composition

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9
Q

Exemple

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10
Q

Déf.Image directe

A
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11
Q

Soient E, F deux ensembles

def.l’image réciproqu

A
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12
Q

Remarque : . Image directe, image réciproqu

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13
Q

Antécédents

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14
Q

Mini-exercices.

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15
Q

f est injective si

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16
Q

f est surjective s

A
17
Q

Remarque sur injective et surjective

A
18
Q

injective et surjective exemple

A
19
Q

f est bijective si

A
20
Q

Proposition de la bijection

A
21
Q

Remarque de bjection

A

bijection réciproque

22
Q

bijection réciproque

A
23
Q
A

.

24
Q

Défintion d’un cardinal

A
25
Q
A