Section QI.
Variables variable function constructor : Type.
Notation value := (Syntax.value constructor).
Notation term := (Syntax.term variable function constructor).
Notation pattern := (Syntax.pattern variable constructor).
Notation rule := (Syntax.rule variable function constructor).
Notation term_from_value := (Syntax.term_from_value variable function (constructor:=constructor)).
Notation term_from_pattern := (Syntax.term_from_pattern (variable:=variable) function (constructor:=constructor)).
Variable prog : list rule.
Variable max_arity:nat.
Variable rule_default : rule.
Variable variable_eq_dec : forall (x1 x2 : variable), {x1=x2}+{x1<>x2}.
Variable function_eq_dec : forall (x1 x2 : function), {x1=x2}+{x1<>x2}.
Variable constructor_eq_dec : forall (x1 x2 : constructor), {x1=x2}+{x1<>x2}.
Notation cache := (CBV_cache.cache variable function constructor).
Notation cache_path := (CBV_cache.cache_path variable_eq_dec function_eq_dec constructor_eq_dec).
Notation cache_path_transitivity :=
(@CBV_cache.cache_path_transitivity _ _ _ variable_eq_dec function_eq_dec constructor_eq_dec).
Notation cache_path_transitivity_left :=
(@CBV_cache.cache_path_transitivity_left _ _ _ variable_eq_dec function_eq_dec constructor_eq_dec).
Notation cbv := (CBV_cache.cbv variable function constructor).
Notation wf := (CBV_cache.wf variable_eq_dec  function_eq_dec constructor_eq_dec rule_default
prog max_arity).
(*Definition 11*)
Definition assignment_constructor := constructor -> list nat -> nat.
Definition assignment_function := function -> list nat -> nat.
(*****************************************************************************************)
(*                  QI of constructors / value                                           *)
(*****************************************************************************************)
(* additivity*)
Variable mcs: nat.
Definition constructor_non_zero cs :=
forall c:constructor, cs  c > 0.
Definition additive (qic:assignment_constructor) cs :=
forall c:constructor, forall l, qic c l=(suml l)+(cs c).
Definition mcs_is_max_constructor_size cs :=
forall c:constructor, cs c <= mcs.

Lemma monotonicity_qic qic cs: additive qic cs -> forall c:constructor,
forall lx ly, Forall2 le lx ly -> qic c lx <= qic c ly.