{"version":"1.0","type":"link","title":"Empty set - Newikis","description":"In mathematics, the empty set or void set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set, while in other theories, its existence can be deduced. Many…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/6/6a/Nullset.svg/1280px-Nullset.svg.png","thumbnail_width":1280,"thumbnail_height":1656}