src/HOL/Probability/Caratheodory.thy
changeset 57446 06e195515deb
parent 57418 6ab1c7cb0b8d
child 57447 87429bdecad5
     1.1 --- a/src/HOL/Probability/Caratheodory.thy	Tue Jul 01 11:06:31 2014 +0200
     1.2 +++ b/src/HOL/Probability/Caratheodory.thy	Mon Jun 30 15:45:03 2014 +0200
     1.3 @@ -640,8 +640,7 @@
     1.4  
     1.5  lemma measure_down:
     1.6    "measure_space \<Omega> N \<mu> \<Longrightarrow> sigma_algebra \<Omega> M \<Longrightarrow> M \<subseteq> N \<Longrightarrow> measure_space \<Omega> M \<mu>"
     1.7 -  by (simp add: measure_space_def positive_def countably_additive_def)
     1.8 -     blast
     1.9 +  by (auto simp add: measure_space_def positive_def countably_additive_def subset_eq)
    1.10  
    1.11  subsection {* Caratheodory's theorem *}
    1.12