# HG changeset patch
# User wenzelm
# Date 1563967095 -7200
# Node ID e8558735961a0c0686de8f002071ad2265f17e77
# Parent  8473c1b32e2e1dade3be488a5bbcd4338efebf94
clarified syntax;

diff -r 8473c1b32e2e -r e8558735961a src/Pure/Proof/proof_syntax.ML
--- a/src/Pure/Proof/proof_syntax.ML	Wed Jul 24 11:57:30 2019 +0200
+++ b/src/Pure/Proof/proof_syntax.ML	Wed Jul 24 13:18:15 2019 +0200
@@ -51,7 +51,7 @@
      ("", paramT --> paramsT, Mixfix.mixfix "_"),
      (Lexicon.mark_const "Pure.Appt", [proofT, aT] ---> proofT, mixfix ("(1_ \<cdot>/ _)", [4, 5], 4)),
      (Lexicon.mark_const "Pure.AppP", [proofT, proofT] ---> proofT, mixfix ("(1_ \<bullet>/ _)", [4, 5], 4)),
-     (Lexicon.mark_const "Pure.MinProof", proofT, Mixfix.mixfix "?")]
+     (Lexicon.mark_const "Pure.MinProof", proofT, Mixfix.mixfix "\<^bold>?")]
   |> Sign.add_trrules (map Syntax.Parse_Print_Rule
     [(Ast.mk_appl (Ast.Constant "_Lam")
         [Ast.mk_appl (Ast.Constant "_Lam0")