%0 Journal Article %A A. Pouhassani %D 2009 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 25, 2009 %T Some Discrete Propositions in IVSs %U https://publications.waset.org/pdf/12444 %V 25 %X The aim of this paper is to exhibit some properties of local topologies of an IVS. Also, we Introduce ISG structure as an interesting structure of semigroups in IVSs. %P 31 - 33