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-rw-r--r--spartan/data/More_Types.thy3
1 files changed, 2 insertions, 1 deletions
diff --git a/spartan/data/More_Types.thy b/spartan/data/More_Types.thy
index f0cee6d..fecf378 100644
--- a/spartan/data/More_Types.thy
+++ b/spartan/data/More_Types.thy
@@ -1,9 +1,10 @@
+chapter \<open>Some standard types\<close>
+
theory More_Types
imports Spartan
begin
-
section \<open>Sum type\<close>
axiomatization