Require Import Crypto.Arithmetic.PrimeFieldTheorems. Require Import Crypto.Specific.solinas64_2e174m17_4limbs.Synthesis. (* TODO : change this to field once field isomorphism happens *) Definition freeze : { freeze : feBW_tight -> feBW_limbwidths | forall a, phiBW_limbwidths (freeze a) = phiBW_tight a }. Proof. Set Ltac Profiling. Time synthesize_freeze (). Show Ltac Profile. Time Defined. Print Assumptions freeze.