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src/HOL/Algebra/abstract/Field.thy
author nipkow
Wed, 01 Apr 2009 18:41:15 +0200
changeset 30840 98809b3f5e3c
parent 29665 2b956243d123
child 35849 b5522b51cb1e
permissions -rw-r--r--
added nat_div_gt_0 [simp]

(*
    Properties of abstract class field
    Author: Clemens Ballarin, started 15 November 1997
*)

theory Field imports Factor PID begin

instance field < "domain"
  apply intro_classes
   apply (rule field_one_not_zero)
  apply (erule field_integral)
  done

instance field < factorial
  apply intro_classes
  apply (erule field_fact_prime)
  done

end
isabelle