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-rw-r--r--plugins/ring/ring.ml2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/ring/ring.ml b/plugins/ring/ring.ml
index 6ee12ebcb..c0b5542ee 100644
--- a/plugins/ring/ring.ml
+++ b/plugins/ring/ring.ml
@@ -258,7 +258,7 @@ let subst_theory subst th =
}
-let subst_th (_,subst,(c,th as obj)) =
+let subst_th (subst,(c,th as obj)) =
let c' = subst_mps subst c in
let th' = subst_theory subst th in
if c' == c && th' == th then obj else