src/HOL/Library/Product_plus.thy
changeset 51002 496013a6eb38
parent 44066 d74182c93f04
child 51301 6822aa82aafa
     1.1 --- a/src/HOL/Library/Product_plus.thy	Thu Jan 31 12:09:07 2013 +0100
     1.2 +++ b/src/HOL/Library/Product_plus.thy	Thu Jan 31 17:42:12 2013 +0100
     1.3 @@ -5,7 +5,7 @@
     1.4  header {* Additive group operations on product types *}
     1.5  
     1.6  theory Product_plus
     1.7 -imports Main
     1.8 +imports "~~/src/HOL/Main"
     1.9  begin
    1.10  
    1.11  subsection {* Operations *}