Require Import Crypto.Arithmetic.PrimeFieldTheorems. Require Import Crypto.Specific.solinas32_2e401m31_17limbs.Synthesis. (* TODO : change this to field once field isomorphism happens *) Definition sub : { sub : feBW_tight -> feBW_tight -> feBW_loose | forall a b, phiBW_loose (sub a b) = F.sub (phiBW_tight a) (phiBW_tight b) }. Proof. Set Ltac Profiling. Time synthesize_sub (). Show Ltac Profile. Time Defined. Print Assumptions sub.