1. "by proof" now allowed as a justification in equality chains.

[helm.git] / helm / software / components / grafite / grafiteAstPp.ml

diff --git a/helm/software/components/grafite/grafiteAstPp.ml b/helm/software/components/grafite/grafiteAstPp.ml
index f689ff101d1c78561248b32c1a64dd7adeddde71..4828d037957a72e291de454bd361fd75e9726e55 100644 (file)
--- a/helm/software/components/grafite/grafiteAstPp.ml
+++ b/helm/software/components/grafite/grafiteAstPp.ml
@@ -187,7 +187,7 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   | Thesisbecomes (_, term) -> "the thesis becomes " ^ term_pp term
   | ExistsElim (_, term0, ident, term, ident1, term1) -> "by " ^ (match term0 with None -> "_" | Some term -> term_pp term) ^ "let " ^ ident ^ ":" ^ term_pp term ^ "such that " ^ lazy_term_pp term1 ^ "(" ^ ident1 ^ ")"
   | AndElim (_, term, ident1, term1, ident2, term2) -> "by " ^ term_pp term ^ "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 -> "_" ^ String.concat " " (List.map (fun (k,v) -> if v <> "" then k ^ "=" ^ v else k) params)  | `Term term2 -> term_pp term2) ^ (if cont then " done" else "")
+  | 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 ^ " by " ^ (match term2 with `Auto params -> "_" ^ String.concat " " (List.map (fun (k,v) -> if v <> "" then k ^ "=" ^ v else k) params)  | `Term term2 -> term_pp term2 | `Proof -> "proof") ^ (if cont then " done" else "")
   | Case (_, id, args) ->
      "case" ^ id ^
        String.concat " "