+ (* Tattiche Aggiunte *)
+ | Assume (_, ident , term) -> "assume" ^ ident ^ ":" ^ term_pp term
+ | Suppose (_, term, ident,term1) -> "suppose" ^ term_pp term ^ "(" ^ ident ^ ")" ^ (match term1 with None -> " " | Some term1 -> term_pp term1)
+ | Bydone (_, just) -> pp_just ~term_pp just ^ "done"
+ | By_just_we_proved (_, just, term1, ident, term2) -> pp_just ~term_pp just ^ "we proved" ^ term_pp term1 ^ (match ident with None -> "" | Some ident -> "(" ^ident^ ")") ^
+ (match term2 with None -> " " | Some term2 -> term_pp term2)
+ | We_need_to_prove (_, term, ident, term1) -> "we need to prove" ^ term_pp term ^ (match ident with None -> "" | Some ident -> "(" ^ ident ^ ")") ^ (match term1 with None -> " " | Some term1 -> term_pp term1)
+ | We_proceed_by_cases_on (_, term, term1) -> "we proceed by cases on" ^ term_pp term ^ "to prove" ^ term_pp term1
+ | We_proceed_by_induction_on (_, term, term1) -> "we proceed by induction on" ^ term_pp term ^ "to prove" ^ term_pp term1
+ | Byinduction (_, term, ident) -> "by induction hypothesis we know" ^ term_pp term ^ "(" ^ ident ^ ")"
+ | Thesisbecomes (_, term) -> "the thesis becomes " ^ term_pp term
+ | ExistsElim (_, just, ident, term, ident1, term1) -> pp_just ~term_pp just ^ "let " ^ ident ^ ":" ^ term_pp term ^ "such that " ^ lazy_term_pp term1 ^ "(" ^ ident1 ^ ")"
+ | AndElim (_, just, ident1, term1, ident2, term2) -> pp_just ~term_pp just ^ "we have " ^ term_pp term1 ^ " (" ^ ident1 ^ ") " ^ "and " ^ term_pp term2 ^ " (" ^ ident2 ^ ")"
+ | RewritingStep (_, term, term1, term2, cont) ->
+ (match term with
+ | None -> " "
+ | Some (None,term) -> "conclude " ^ term_pp term
+ | Some (Some name,term) ->
+ "obtain (" ^ name ^ ") " ^ term_pp term)
+ ^ "=" ^
+ term_pp term1 ^
+ (match term2 with
+ | `Auto params -> pp_auto_params ~term_pp params
+ | `Term term2 -> " exact " ^ term_pp term2
+ | `Proof -> " proof"
+ | `SolveWith term -> " using " ^ term_pp term)
+ ^ (if cont then " done" else "")
+ | Case (_, id, args) ->
+ "case" ^ id ^
+ String.concat " "
+ (List.map (function (id,term) -> "(" ^ id ^ ": " ^ term_pp term ^ ")")
+ args)
+ in pp_tactic
+
+and pp_tactics ~map_unicode_to_tex ~term_pp ~lazy_term_pp ~sep tacs =
+ String.concat sep
+ (List.map (pp_tactic ~map_unicode_to_tex ~lazy_term_pp ~term_pp) tacs)