Lvc.Infra.Len
Require Import Smpl.
Create HintDb len discriminated.
Smpl Create len [progress].
Ltac len_simpl := smpl len; repeat (smpl len).
Hint Extern 0 ⇒ len_simpl : len.
Create HintDb len discriminated.
Smpl Create len [progress].
Ltac len_simpl := smpl len; repeat (smpl len).
Hint Extern 0 ⇒ len_simpl : len.