Require Export FcEtt.fset_facts.
Require Export FcEtt.ett_inf.
Require Export FcEtt.tactics.
(* This file contains:  - Syntactic stuff that should be defined by lngen (and that we should get LNgen to generate in the future).  - Induction principles for the relations.  - Other tactics that are specialized to the relations.  *)
Set Bullet Behavior "Strict Subproofs".
Set Implicit Arguments.

Lemma tm_subst_tm_tm_var : forall a x, tm_subst_tm_tm a x (a_Var_f x) = a.