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-rw-r--r--HoTT_Methods.thy4
1 files changed, 2 insertions, 2 deletions
diff --git a/HoTT_Methods.thy b/HoTT_Methods.thy
index e45608e..0199a49 100644
--- a/HoTT_Methods.thy
+++ b/HoTT_Methods.thy
@@ -68,8 +68,8 @@ It also handles universes using @{method cumulativity}.
The method @{method hierarchy} has been observed to cause looping in previous versions, and is hence no longer part of @{theory_text derive}.
\<close>
-method derive uses lems declares comp =
- (routine add: lems | compute add: lems comp: comp | cumulativity form: lems)+
+method derive uses lems unfold declares comp =
+ (unfold unfold | routine add: lems | compute add: lems comp: comp | cumulativity form: lems)+
section \<open>Additional method combinators\<close>