1.1 --- a/test/Tools/isac/ADDTESTS/course/SignalProcess/Build_Inverse_Z_Transform.thy	Tue Apr 21 16:16:11 2020 +0200
     1.2 +++ b/test/Tools/isac/ADDTESTS/course/SignalProcess/Build_Inverse_Z_Transform.thy	Tue Apr 21 16:53:17 2020 +0200
     1.3 @@ -652,7 +652,7 @@
     1.4        of simplification occurs right here, in the next step.\<close>
     1.5  
     1.6  ML \<open>
     1.7 -  trace_rewrite := false;
     1.8 +  Trace.trace_rewrite := false;
     1.9    val SOME fract1 =
    1.10      parseNEW ctxt "(z - 1/2)*(z - -1/4) * (A/(z - 1/2) + B/(z - -1/4))";
    1.11    (*
    1.12 @@ -1242,7 +1242,7 @@
    1.13        tree and check if every node implements that what we have wanted.\<close>
    1.14        
    1.15  ML \<open>
    1.16 -  trace_rewrite := false; (*true*)
    1.17 +  Trace.trace_rewrite := false; (*true*)
    1.18    trace_LI := false; (*true*)
    1.19    print_depth 9;
    1.20