package lambdapi

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Proof assistant for the λΠ-calculus modulo rewriting

Install 

dune-project
 Dependency

github.com Readme Changelog Edit opam file Versions (12)

Authors

  1. D
    Deducteam

Maintainers

  1. D
    dedukti-dev@inria.fr

Sources

lambdapi-2.2.1.tbz
sha256=ba73f288e435130293408bd44732f1dfc5ec8a8db91c7453c9baf9c740095829
sha512=f88bb92fdb8aee8add60588673040fac012b2eab17c2a1d529c4b7c795cf0e1a9168122dc19889f04a31bda2bb2cf820237cbbe7e319121618aba3d134381756

doc/lambdapi.parsing/Parsing/Scope/index.html

Module Parsing.ScopeSource

Scoping. Convert parsed terms in core terms by finding out which identifiers are bound variables or function symbol declared in open modules.

Sourceval scope_term : ?typ:bool -> ?mok:(int -> Core.Term.meta option) -> bool -> Core.Sig_state.sig_state -> Core.Env.env -> Syntax.p_term -> Core.Term.term

scope ~typ ~mok prv expo ss env p t turns a pterm t into a term in the signature state ss and environment env (for bound variables). If expo is Public, then the term must not contain any private subterms. If ~typ is true, then t must be a type (defaults to false). No new metavariables may appear in t, but metavariables in the image of mok may be used. The function mok defaults to the function constant to None

Sourcetype pre_rule = {
  1. pr_sym : Core.Term.sym;
    (*

    Head symbol of the LHS.

    *)
  2. pr_lhs : Core.Term.term list;
    (*

    Arguments of the LHS.

    *)
  3. pr_vars : Core.Term.term_env Bindlib.mvar;
    (*

    Pattern variables that appear in the RHS. The last pr_xvars_nb variables do not appear in the LHS.

    *)
  4. pr_rhs : Core.Term.tbox;
    (*

    Body of the RHS, should only be unboxed once.

    *)
  5. pr_names : (int, string) Hashtbl.t;
    (*

    Gives the original name (if any) of pattern variable at given index.

    *)
  6. pr_arities : int array;
    (*

    Gives the arity of all the pattern variables in field pr_vars.

    *)
  7. pr_xvars_nb : int;
    (*

    Number of variables that appear in the RHS but not in the LHS.

    *)
}

Representation of a rewriting rule prior to SR-checking.

Sourceval rule_of_pre_rule : pre_rule Common.Pos.loc -> Core.Term.rule

rule_of_pre_rule r converts a pre-rewrite rule into a rewrite rule.

scope_rule ur ss r turns a parser-level rewriting rule r, or a unification rule if ur is true, into a pre-rewriting rule.

scope_rw_patt ss env t turns a parser-level rewrite tactic specification s into an actual rewrite specification (possibly containing variables of env and using ss for aliasing).