Ivan Shishkin, Birch Grove

Composition d’applications

Definition / Mathematical formalism / Stub

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Si on prend les applications f:X→Yf:X \rightarrow Y et g:Y→Zg:Y \rightarrow Z, leur composition g∘f:X→Zg\circ f:X \rightarrow Z est l’application définie par
(g∘f)(x)=g(f(x))pour tout x∈X.(g\circ f)(x)=g(f(x))\quad\text{pour tout }x\in X.

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