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src/HOL/Hyperreal/Fact.thy
author paulson
Fri, 16 Nov 2001 18:24:11 +0100
changeset 12224 02df7cbe7d25
parent 12196 a3be6b3a9c0b
child 15094 a7d1a3fdc30d
permissions -rw-r--r--
even more theories from Jacques

(*  Title       : Fact.thy 
    Author      : Jacques D. Fleuriot
    Copyright   : 1998  University of Cambridge
    Description : Factorial function
*)

Fact = NatStar + 

consts fact :: nat => nat 
primrec 
   fact_0     "fact 0 = 1"
   fact_Suc   "fact (Suc n) = (Suc n) * fact n" 

end
isabelle