| Title: | The axiom of choice for countable sets of countable sets does not imply the countable union theorem |
|---|---|
| Author(s): | P. Howard |
| Appeared: | Notre Dame J. Formal Logic , 1992, , 13, 236-243. |
| Notes: | NULL |
| Status: | published |
| Display: | Howard, P. 1992 |
| ID: | 215 |