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-rw-r--r--src/Compilers/MapCastByDeBruijnInterp.v1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/Compilers/MapCastByDeBruijnInterp.v b/src/Compilers/MapCastByDeBruijnInterp.v
index 10e09242a..7674e5f0e 100644
--- a/src/Compilers/MapCastByDeBruijnInterp.v
+++ b/src/Compilers/MapCastByDeBruijnInterp.v
@@ -66,6 +66,7 @@ Section language.
then fun pf => left (base_type_code_bl_transparent _ _ pf)
else fun pf => right _) eq_refl).
{ clear -pf base_type_code_lb.
+ let pf := pf in
abstract (intro; erewrite base_type_code_lb in pf by eassumption; congruence). }
Defined.