18. Glossary

Continuous mapping between two pre-topological spaces; Continuous mapping between two pre-topological spaces.

Application whose inverse image of a neighborhood of the arrival space is a neighborhood of the departure space.

Espace prétopologique (E,cl): pre-topological space.

Set E with a pre-closure operator $cl (\cdot)$ .

Opérateur de pré-fermeture $cl (\cdot)$ : pre-closure operator.

Application defined by

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