Other contributions came from Augustin-Louis Cauchy, Ludwig Schläfli, Johann Benedict Listing, Bernhard Riemann and Enrico Betti.  Listing introduced the term « topology » into preliminary topology studies in 1847, after the word had been used in correspondence for ten years before it first appeared in print.  The English form « topology » was used in 1883 in the obituary of Listing in the journal Nature to « distinguish qualitative geometry from ordinary geometry, where quantitative relationships are mainly treated. »  In cosmology, topology can be used to describe the overall shape of the universe.  This area of research is commonly known as the topology of space-time. Example: framework cooperation contract. « none » could mean that there should definitely not be a connection, the absence of a segment only indicates that the segment was not created. « none » is not yet supported, left-right segments are only created if a segment is first created from a replication agreement, creating a steering segment via ipa commands is not yet supported. A topological space is a quantity that is equipped with a structure called topology and that makes it possible to define a continuous deformation of the subsoils and, more generally, all types of continuity. Euclidean spaces and general metric spaces are examples of topological space, because each distance or metric defines a topology. .