proper syntactic category for abstraction syntax, to avoid low-level exception for malformed "\<integral> x y. f \<partial>M", for example;

--- a/src/HOL/Probability/Lebesgue_Integration.thy	Fri Nov 04 17:34:51 2011 +0100
+++ b/src/HOL/Probability/Lebesgue_Integration.thy	Fri Nov 04 20:16:42 2011 +0100
@@ -527,7 +527,7 @@
   "integral\<^isup>S M f = (\<Sum>x \<in> f ` space M. x * measure M (f -` {x} \<inter> space M))"
 
 syntax
-  "_simple_integral" :: "'a \<Rightarrow> ('a \<Rightarrow> ereal) \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> ereal" ("\<integral>\<^isup>S _. _ \<partial>_" [60,61] 110)
+  "_simple_integral" :: "pttrn \<Rightarrow> ereal \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> ereal" ("\<integral>\<^isup>S _. _ \<partial>_" [60,61] 110)
 
 translations
   "\<integral>\<^isup>S x. f \<partial>M" == "CONST integral\<^isup>S M (%x. f)"
@@ -872,7 +872,7 @@
   "integral\<^isup>P M f = (SUP g : {g. simple_function M g \<and> g \<le> max 0 \<circ> f}. integral\<^isup>S M g)"
 
 syntax
-  "_positive_integral" :: "'a \<Rightarrow> ('a \<Rightarrow> ereal) \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> ereal" ("\<integral>\<^isup>+ _. _ \<partial>_" [60,61] 110)
+  "_positive_integral" :: "pttrn \<Rightarrow> ereal \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> ereal" ("\<integral>\<^isup>+ _. _ \<partial>_" [60,61] 110)
 
 translations
   "\<integral>\<^isup>+ x. f \<partial>M" == "CONST integral\<^isup>P M (%x. f)"
@@ -1686,7 +1686,7 @@
   "integral\<^isup>L M f = real ((\<integral>\<^isup>+ x. ereal (f x) \<partial>M)) - real ((\<integral>\<^isup>+ x. ereal (- f x) \<partial>M))"
 
 syntax
-  "_lebesgue_integral" :: "'a \<Rightarrow> ('a \<Rightarrow> real) \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> real" ("\<integral> _. _ \<partial>_" [60,61] 110)
+  "_lebesgue_integral" :: "pttrn \<Rightarrow> real \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> real" ("\<integral> _. _ \<partial>_" [60,61] 110)
 
 translations
   "\<integral> x. f \<partial>M" == "CONST integral\<^isup>L M (%x. f)"

--- a/src/HOL/Probability/Measure.thy	Fri Nov 04 17:34:51 2011 +0100
+++ b/src/HOL/Probability/Measure.thy	Fri Nov 04 20:16:42 2011 +0100
@@ -652,7 +652,7 @@
   "almost_everywhere P \<longleftrightarrow> (\<exists>N\<in>null_sets. { x \<in> space M. \<not> P x } \<subseteq> N)"
 
 syntax
-  "_almost_everywhere" :: "'a \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> ('a \<Rightarrow> bool) \<Rightarrow> bool" ("AE _ in _. _" [0,0,10] 10)
+  "_almost_everywhere" :: "pttrn \<Rightarrow> ('a, 'b) measure_space_scheme \<Rightarrow> bool \<Rightarrow> bool" ("AE _ in _. _" [0,0,10] 10)
 
 translations
   "AE x in M. P" == "CONST measure_space.almost_everywhere M (%x. P)"