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-(************************************************************************)
-(* v * The Coq Proof Assistant / The Coq Development Team *)
-(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *)
-(* \VV/ **************************************************************)
-(* // * This file is distributed under the terms of the *)
-(* * GNU Lesser General Public License Version 2.1 *)
-(************************************************************************)
-
-(*i $Id: proof_trees.mli 14641 2011-11-06 11:59:10Z herbelin $ i*)
-
-(*i*)
-open Util
-open Names
-open Term
-open Sign
-open Evd
-open Environ
-open Proof_type
-(*i*)
-
-(* This module declares readable constraints, and a few utilities on
- constraints and proof trees *)
-
-val mk_goal : named_context_val -> constr -> Dyn.t option -> goal
-
-val rule_of_proof : proof_tree -> rule
-val ref_of_proof : proof_tree -> (rule * proof_tree list)
-val children_of_proof : proof_tree -> proof_tree list
-val goal_of_proof : proof_tree -> goal
-val subproof_of_proof : proof_tree -> proof_tree
-val status_of_proof : proof_tree -> int
-val is_complete_proof : proof_tree -> bool
-val is_leaf_proof : proof_tree -> bool
-val is_tactic_proof : proof_tree -> bool
-
-val pf_lookup_name_as_displayed : env -> constr -> identifier -> int option
-val pf_lookup_index_as_renamed : env -> constr -> int -> int option
-
-val is_proof_instr : rule -> bool
-val is_focussing_command : rule -> bool
-
-(*s Pretty printing functions. *)
-
-(*i*)
-open Pp
-(*i*)
-
-val db_pr_goal : goal -> std_ppcmds