Timeline for Is there a model theoretic realization of the concept of Arithmetical Hierachy?
Current License: CC BY-SA 3.0
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| when toggle format | what | by | license | comment | |
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| Jan 9, 2012 at 1:09 | comment | added | Andreas Blass | The result about sandwiches can also be found in the exercises of the model theory chapter in Shoenfield's "Mathematical Logic". | |
| Jan 8, 2012 at 23:16 | history | answered | Goldstern | CC BY-SA 3.0 |