src/HOL/Library/Quotient_Set.thy
changeset 62954 c5d0fdc260fa
parent 60500 903bb1495239
child 67399 eab6ce8368fa
     1.1 --- a/src/HOL/Library/Quotient_Set.thy	Mon Apr 11 15:07:15 2016 +0200
     1.2 +++ b/src/HOL/Library/Quotient_Set.thy	Mon Apr 11 15:26:58 2016 +0200
     1.3 @@ -5,7 +5,7 @@
     1.4  section \<open>Quotient infrastructure for the set type\<close>
     1.5  
     1.6  theory Quotient_Set
     1.7 -imports Main Quotient_Syntax
     1.8 +imports Quotient_Syntax
     1.9  begin
    1.10  
    1.11  subsection \<open>Contravariant set map (vimage) and set relator, rules for the Quotient package\<close>