Tue, 17 Mar 2015 15:21:41 +0100 wenzelm misc tuning and simplification;
Tue, 17 Mar 2015 17:45:03 +0000 paulson Inserted real_of_nat to fix factorial-related problem
Tue, 17 Mar 2015 15:11:25 +0000 paulson more general type class for factorial. Now allows code generation (?)
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