About: http://webisa.webdatacommons.org/180086652

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	But if $R$ is any non-zero ring at all, and $u$ is a unit, then $R\rightarrow R[u^{-1}]$ is an isomorphism, and in particular injective, whether or not $R$ is a domain.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com