00329cam a2200121ua 4500041001000000082001800010100002600028245007800054250001200132260004600144300001200190504000500202  aengh  a511.3bROS/EL  aRoseenblom, Paul c  .  aElements of mathematical logic / cPaul C Roseenbloom.hTextual Documents  a1 / b.  aNew York : bDover Publications , c1950.  a229 ; .  a