src/HOL/AxClasses/Group/Sigs.thy
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     1 (*  Title:      Sigs.thy
       
     2     ID:         $Id$
       
     3     Author:     Markus Wenzel, TU Muenchen
       
     4 *)
       
     5 
       
     6 Sigs = HOL +
       
     7 
       
     8 axclass
       
     9   inv < term
       
    10 
       
    11 axclass
       
    12   one < term
       
    13 
       
    14 consts
       
    15   "inv" :: "'a::inv => 'a"
       
    16   "1"   :: "'a::one"                    ("1")
       
    17 
       
    18 end