Sat, 27 Mar 2010 09:21:43 +0100 Cezary Kaliszyk Generalize Abs_eq_iff.
Sat, 27 Mar 2010 09:15:09 +0100 Cezary Kaliszyk Minor fix.
Sat, 27 Mar 2010 08:42:07 +0100 Cezary Kaliszyk New compose lemmas. Reverted alpha_gen sym/trans changes. Equivp for alpha_res should work now.
Sat, 27 Mar 2010 08:17:43 +0100 Cezary Kaliszyk Initial proof modifications for alpha_res
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