Timeline for showing the subgroup membership problem is undecidable for $F_2 \times F_2$
Current License: CC BY-SA 2.5
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 4, 2011 at 18:23 | history | edited | user6976 | CC BY-SA 2.5 |
added 144 characters in body
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| Feb 4, 2011 at 18:00 | history | answered | user6976 | CC BY-SA 2.5 |