{"version":"1.0","type":"link","title":"Subcountability - Newikis","description":"In constructive mathematics, a collection is subcountable if there exists a partial surjection from the natural numbers onto it. This may be expressed as where denotes that is a surjective function from onto . The surjection is a member of and here the subclass of is required to be a set. In other…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}