{"version":"1.0","type":"link","title":"Permutation model - Newikis","description":"In mathematical set theory, a permutation model is a model of set theory with atoms (ZFA) constructed using a group of permutations of the atoms. A symmetric model is similar except that it is a model of ZF (without atoms) and is constructed using a group of permutations of a forcing poset. One…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}