Module Letify

module Letify: sig .. end

module Ground: sig .. end

module Sigma: sig .. end

module Defs: sig .. end

val bind : Sigma.t -> Defs.t -> Lang.F.Vars.t -> Sigma.t

bind sigma defs xs select definitions in defs targeting variables xs. The result is a new substitution that potentially augment sigma with definitions for xs (and others).

val add_definitions : Sigma.t ->
       Defs.t -> Lang.F.Vars.t -> Lang.F.pred list -> Lang.F.pred list

add_definitions sigma defs xs ps keep all definitions of variables xs from sigma that comes from defs. They are added to ps.

module Split: sig .. end

Pruning strategy ; selects most occurring literals to split cases.