src/HOL/Main.thy

 header {* Main HOL *}
 
 theory Main
-imports Plain Predicate_Compile Nitpick
+imports Predicate_Compile Nitpick Extraction
 begin
 
 text {*
   Classical Higher-order Logic -- only ``Main'', excluding real and
   complex numbers etc.
 *}
 
 text {* See further \cite{Nipkow-et-al:2002:tutorial} *}
 
+no_notation
+  bot ("\<bottom>") and
+  top ("\<top>") and
+  inf (infixl "\<sqinter>" 70) and
+  sup (infixl "\<squnion>" 65) and
+  Inf ("\<Sqinter>_" [900] 900) and
+  Sup ("\<Squnion>_" [900] 900)
+
+no_syntax (xsymbols)
+  "_INF1"     :: "pttrns \<Rightarrow> 'b \<Rightarrow> 'b"           ("(3\<Sqinter>_./ _)" [0, 10] 10)
+  "_INF"      :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b \<Rightarrow> 'b"  ("(3\<Sqinter>_\<in>_./ _)" [0, 0, 10] 10)
+  "_SUP1"     :: "pttrns \<Rightarrow> 'b \<Rightarrow> 'b"           ("(3\<Squnion>_./ _)" [0, 10] 10)
+  "_SUP"      :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b \<Rightarrow> 'b"  ("(3\<Squnion>_\<in>_./ _)" [0, 0, 10] 10)
+
 end