New Soft Structure: Infra Soft Topological Spaces

It is always convenient to find the weakest conditions that preserve some topologically inspired properties. To this end, we introduce concept of an infra soft topology which a collection subsets extend by dispensing with postulate closed under arbitrary unions. We study basic concepts topological spaces such as open and sets, interior closure operators, limit boundary points set. reveal main properties these help elucidative examples. Then, present methods generate topologies neighbourhood systems, basis topology, relative topology. also investigate how initiate from crisp topologies. In explore continuity between determine preserved space its parametric spaces.