Ivan Shishkin, Birch Grove

Fonction croissante

Definition / Set theory / Usable

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Usable. This concept is clear enough to use, but has not yet been reviewed by another trusted user.

Une fonction f:A→Rf:A \rightarrow \R définie sur un sous-ensemble A⊆RA\subseteq \R est croissante si, pour tout x,y∈Ax,y\in A, tels que x⩽yx\leqslant y, on a f(x)⩽f(y)f(x)\leqslant f(y).

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