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-rw-r--r--proofs/redexpr.ml5
1 files changed, 4 insertions, 1 deletions
diff --git a/proofs/redexpr.ml b/proofs/redexpr.ml
index ee5591521..55dfb88b4 100644
--- a/proofs/redexpr.ml
+++ b/proofs/redexpr.ml
@@ -146,7 +146,10 @@ let make_flag_constant = function
let make_flag env f =
let red = no_red in
let red = if f.rBeta then red_add red fBETA else red in
- let red = if f.rIota then red_add red fIOTA else red in
+ let red =
+ if f.rIota then (red_add (red_add (red_add red fMATCH) fFIX) fCOFIX)
+ else red
+ in
let red = if f.rZeta then red_add red fZETA else red in
let red =
if f.rDelta then (* All but rConst *)