Datalog: Ullman's theorem 3.2

From: Lara Winter <tbird_at_gmx.de>
Date: 10 Jun 2002 05:37:02 -0700
Message-ID: <3822f810.0206100437.1685bf1b_at_posting.google.com>



Hello group,

I need a formally proof (induction) of the theorem 3.2. Can anybody help me?

The theorem is located in this book:

Jeff Ullman, "Principles of Database and Knowledge-Base Systems" - Vol. I page 114
theorem 3.2

Thanks,
Lisa Winter Received on Mon Jun 10 2002 - 14:37:02 CEST

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