Tue, 05 Jan 2010 15:25:31 +0100 Cezary Kaliszyk Trying to state composition quotient.
Tue, 05 Jan 2010 14:23:45 +0100 Christian Urban proper handling of error messages (code copy - maybe this can be avoided)
Tue, 05 Jan 2010 14:09:04 +0100 Christian Urban added a new version of equiv_relation (is not yet used anywhere except in AbsRepTest)
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