| Fri, 08 Jan 2010 19:46:22 +0100 | Cezary Kaliszyk | New_relations, all works again including concat examples. | file | diff | annotate |
| Fri, 08 Jan 2010 11:20:12 +0100 | Cezary Kaliszyk | Experimients with fconcat_insert | file | diff | annotate |
| Fri, 08 Jan 2010 10:08:01 +0100 | Cezary Kaliszyk | Proved concat_empty. | file | diff | annotate |
| Wed, 06 Jan 2010 09:19:23 +0100 | Cezary Kaliszyk | Tried to prove the lemma manually; only left with quotient proofs. | file | diff | annotate |