00286nam a2200121Ia 4500020001800000082001800018100001200036245002100048260004900069300000900118650001500127700002200142  a9781470419189  a511.322 SHE/B  aShen, A 0aBasic Set Theory  bAmerican Mathematical SocietyaAmericac2014  a116p  aSet Theory  aVereshchagin, N K