Timeline for Necessary and sufficient criteria for non-trivial derivations to exist?
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
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| Jun 4, 2010 at 20:08 | comment | added | Mikola | Thanks! That exactly answers the second question, and combined with the below paper it pretty much settles what I was asking. | |
| Jun 4, 2010 at 20:07 | vote | accept | Mikola | ||
| Jun 4, 2010 at 20:00 | history | answered | Robin Chapman | CC BY-SA 2.5 |