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-rw-r--r--spartan/lib/List.thy10
1 files changed, 5 insertions, 5 deletions
diff --git a/spartan/lib/List.thy b/spartan/lib/List.thy
index be86b63..34873e4 100644
--- a/spartan/lib/List.thy
+++ b/spartan/lib/List.thy
@@ -132,9 +132,9 @@ Definition app:
assumes "A: U i" "xs: List A" "ys: List A"
shows "List A"
apply (elim xs)
- \<guillemotright> by (fact \<open>ys:_\<close>)
- \<guillemotright> prems vars x _ rec
- proof - show "x # rec: List A" by typechk qed
+ \<^item> by (fact \<open>ys:_\<close>)
+ \<^item> vars x _ rec
+ proof - show "x # rec: List A" by typechk qed
done
definition app_i ("app") where [implicit]: "app xs ys \<equiv> List.app ? xs ys"
@@ -169,8 +169,8 @@ Definition rev:
assumes "A: U i" "xs: List A"
shows "List A"
apply (elim xs)
- \<guillemotright> by (rule List_nil)
- \<guillemotright> prems vars x _ rec proof - show "app rec [x]: List A" by typechk qed
+ \<^item> by (rule List_nil)
+ \<^item> vars x _ rec proof - show "app rec [x]: List A" by typechk qed
done
definition rev_i ("rev") where [implicit]: "rev \<equiv> List.rev ?"