A hereditary property in locally convex spaces
Annales de l'Institut Fourier, Volume 21 (1971) no. 2, p. 1-2

If E is an infrabarrelled space, it is proved that any subspace F, of finite codimension, is infrabarrelled.

Si E est un espace infratonnelé, on démontre que tout sous-espace F, de codimension finie, est infratonnelé.

@article{AIF_1971__21_2_1_0,
     author = {Valdivia, Manuel},
     title = {A hereditary property in locally convex spaces},
     journal = {Annales de l'Institut Fourier},
     publisher = {Imprimerie Durand},
     address = {28 - Luisant},
     volume = {21},
     number = {2},
     year = {1971},
     pages = {1-2},
     doi = {10.5802/aif.367},
     zbl = {0205.40903},
     mrnumber = {48 \#11967},
     language = {en},
     url = {http://www.numdam.org/item/AIF_1971__21_2_1_0}
}
Valdivia, Manuel. A hereditary property in locally convex spaces. Annales de l'Institut Fourier, Volume 21 (1971) no. 2, pp. 1-2. doi : 10.5802/aif.367. http://www.numdam.org/item/AIF_1971__21_2_1_0/

[1] J. Dieudonné, Sur les propriétés de permanence de certaines espaces vectoriels topologiques, Ann. Soc. Pol. Math., 25, (1952), p. 50-55. | MR 15,38b | Zbl 0049.08202