src/HOL/Extraction.thy
changeset 30235 58d147683393
parent 29930 80a9a55b0a0e
child 33704 6aeb8454efc1
     1.1 --- a/src/HOL/Extraction.thy	Tue Mar 03 17:05:18 2009 +0100
     1.2 +++ b/src/HOL/Extraction.thy	Wed Mar 04 10:47:20 2009 +0100
     1.3 @@ -6,7 +6,7 @@
     1.4  header {* Program extraction for HOL *}
     1.5  
     1.6  theory Extraction
     1.7 -imports Datatype
     1.8 +imports Option
     1.9  uses "Tools/rewrite_hol_proof.ML"
    1.10  begin
    1.11