INFORMAZIONI SU QUESTO ARTICOLO
Pubblicato online: 31 dic 2020
Pagine: 35 - 38
Ricevuto: 17 lug 2019
Accettato: 23 set 2019
DOI: https://doi.org/10.2478/aupcsm-2020-0003
Parole chiave
© 2020 Amir Sahami, published by Sciendo
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
In this short note, we give some counter examples which show that [11, Proposition 3.5] is not true. As a consequence, the arguments in [11, Proposition 4.10] are not valid.