Thu, 04 Oct 2001 15:26:14 +0200 wenzelm theory Natural_Numbers;
Thu, 04 Oct 2001 15:25:51 +0200 wenzelm use "~~/src/Provers/induct_method.ML";
Thu, 04 Oct 2001 15:25:31 +0200 wenzelm Theory of the natural numbers: Peano's axioms, primitive recursion.
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