k (+ en)
In a legal context, ''de jure'' is also translated as "by law". A practice may exist ''de facto'', where for example the people obey a contract as though there were a law enforcing it yet there is no such law. A process known as "[[desuetude]]" may allow de facto practices to replace obsolete laws. On the other hand, practices may exist de jure and not be obeyed or observed by the people.
As a logic [[Complement (set theory)|complement]] of "[[de facto]]", where "de facto" have a more generic acception (not so restrictive as at legal context), like in [[social sciences]].
See ''[[de facto standard]]s'' and [[De_facto#Other_usages|other usages]].