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src/HOL/Algebra/abstract/PID.thy
author nipkow
Wed, 27 May 2009 07:56:11 +0200
changeset 31264 2662d1cdc51f
parent 29665 2b956243d123
child 35849 b5522b51cb1e
permissions -rw-r--r--
more lemmas

(*
    Principle ideal domains
    Author: Clemens Ballarin, started 5 October 1999
*)

theory PID imports Ideal2 begin

instance pid < factorial
  apply intro_classes
  apply (erule pid_irred_imp_prime)
  done

end
isabelle