package logtk

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Core types and algorithms for logic

Install

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This module computes precedences that satisfy a list of constraints. See Precedence.Constr for more details on constraints.

type t

val empty : t

val add_constr : int -> [ `partial ] Precedence.Constr.t -> t -> t

Add a precedence constraint with its priority. The lower the priority, the stronger influence the constraint will have.

val add_constrs : (int * [ `partial ] Precedence.Constr.t) list -> t -> t

type 'a parametrized = Statement.clause_t Iter.t -> 'a

Some values are parametrized by the list of statements

val add_constr_rule : 
  int ->
  [ `partial ] Precedence.Constr.t parametrized ->
  t ->
  t

Add a precedence constraint rule

val set_weight_rule : Precedence.weight_fun parametrized -> t -> t

Choose the way weights are computed

val add_status : (ID.t * Precedence.symbol_status) list -> t -> t

Specify explicitly the status of some symbols

val mk_precedence : 
  db_w:int ->
  lmb_w:int ->
  signature:Signature.t ->
  t ->
  Statement.clause_t Iter.t ->
  Precedence.t

Parameters db_w and lmb_w correspond to the weight de-Bruijn and lambda abstraction given for computation of KBO.

Make a precedence

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