Fri, 29 Jul 1994 13:28:39 +0200 renamed union_iff to Union_iff
lcp [Fri, 29 Jul 1994 13:28:39 +0200] rev 498
renamed union_iff to Union_iff renamed power_set to Pow_iff DiffD2: now is really a destruction rule
Fri, 29 Jul 1994 13:21:26 +0200 revised for new theory system: removal of ext, addition of thy_name
lcp [Fri, 29 Jul 1994 13:21:26 +0200] rev 497
revised for new theory system: removal of ext, addition of thy_name
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