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+Require Import Crypto.Arithmetic.PrimeFieldTheorems.
+Require Import Crypto.Specific.X25519.C32.Synthesis.
+
+(* TODO : change this to field once field isomorphism happens *)
+Definition freeze :
+ { freeze : feBW -> feBW
+ | forall a, phiBW (freeze a) = phiBW a }.
+Proof.
+ Set Ltac Profiling.
+ Time synthesize_freeze ().
+ Show Ltac Profile.
+Time Defined.