# HG changeset patch
# User blanchet
# Date 1347291362 -7200
# Node ID 831d4c259f5fed645fdf913b5121684dafe4deda
# Parent  4bf74375b4f737d842e6c8ce2b98cc2568286684
debug

diff -r 4bf74375b4f7 -r 831d4c259f5f src/HOL/Codatatype/Tools/bnf_fp_sugar_tactics.ML
--- a/src/HOL/Codatatype/Tools/bnf_fp_sugar_tactics.ML	Mon Sep 10 17:36:02 2012 +0200
+++ b/src/HOL/Codatatype/Tools/bnf_fp_sugar_tactics.ML	Mon Sep 10 17:36:02 2012 +0200
@@ -30,7 +30,11 @@
    rtac refl) 1;
 
 fun mk_exhaust_tac ctxt n ctr_defs fld_iff_unf sumEN' =
-  Local_Defs.unfold_tac ctxt (fld_iff_unf :: ctr_defs) THEN rtac sumEN' 1 THEN
+print_tac "A1" THEN(*###*)
+  Local_Defs.unfold_tac ctxt (fld_iff_unf :: ctr_defs) THEN
+print_tac ("A2: " ^ Display.string_of_thm ctxt sumEN') THEN(*###*)
+  rtac sumEN' 1 THEN
+print_tac "A3" THEN(*###*)
   Local_Defs.unfold_tac ctxt @{thms all_prod_eq} THEN
   EVERY' (maps (fn k => [select_prem_tac n (rotate_tac 1) k, REPEAT_DETERM o dtac @{thm meta_spec},
     etac @{thm meta_mp}, atac]) (1 upto n)) 1;