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(* $Id$ *)
(*i*)
open Names
open Term
open Evd
(*i*)
(* This module declares the structure of proof trees, global and
readable constraints, and a few utilities on these types *)
type bindOcc =
| Dep of identifier
| NoDep of int
| Com
type 'a substitution = (bindOcc * 'a) list
type tactic_arg =
| Command of Coqast.t
| Constr of constr
| Identifier of identifier
| Integer of int
| Clause of identifier list
| Bindings of Coqast.t substitution
| Cbindings of constr substitution
| Quoted_string of string
| Tacexp of Coqast.t
| Redexp of string * Coqast.t list
| Fixexp of identifier * int * Coqast.t
| Cofixexp of identifier * Coqast.t
| Letpatterns of int list option * (identifier * int list) list
| Intropattern of intro_pattern
and intro_pattern =
| IdPat of identifier
| DisjPat of intro_pattern list
| ConjPat of intro_pattern list
| ListPat of intro_pattern list
and tactic_expression = string * tactic_arg list
type pf_status = Complete_proof | Incomplete_proof
type prim_rule_name =
| Intro
| Intro_after
| Intro_replacing
| Fix
| Cofix
| Refine
| Convert_concl
| Convert_hyp
| Thin
| Move of bool
type prim_rule = {
name : prim_rule_name;
hypspecs : identifier list;
newids : identifier list;
params : Coqast.t list;
terms : constr list }
type local_constraints = Spset.t
(* [ref] = [None] if the goal has still to be proved,
and [Some (r,l)] if the rule [r] was applied to the goal
and gave [l] as subproofs to be completed.
[subproof] = [(Some p)] if [ref = (Some(Tactic t,l))];
[p] is then the proof that the goal can be proven if the goals
in [l] are solved *)
type proof_tree = {
status : pf_status;
goal : goal;
ref : (rule * proof_tree list) option;
subproof : proof_tree option }
and goal = ctxtty evar_info
and rule =
| Prim of prim_rule
| Tactic of tactic_expression
| Context of ctxtty
| Local_constraints of local_constraints
and ctxtty = {
pgm : constr option;
mimick : proof_tree option;
lc : local_constraints }
and evar_declarations = ctxtty evar_map
|
