1.1 --- a/src/HOL/Nitpick.thy	Tue Dec 07 11:56:01 2010 +0100
     1.2 +++ b/src/HOL/Nitpick.thy	Tue Dec 07 11:56:01 2010 +0100
     1.3 @@ -76,6 +76,9 @@
     1.4  "tranclp r a b \<equiv> trancl (split r) (a, b)"
     1.5  by (simp add: trancl_def Collect_def mem_def)
     1.6  
     1.7 +definition prod :: "'a set \<Rightarrow> 'b set \<Rightarrow> ('a \<times> 'b) set" where
     1.8 +"prod A B = {(a, b). a \<in> A \<and> b \<in> B}"
     1.9 +
    1.10  definition refl' :: "('a \<times> 'a \<Rightarrow> bool) \<Rightarrow> bool" where
    1.11  "refl' r \<equiv> \<forall>x. (x, x) \<in> r"
    1.12  
    1.13 @@ -237,18 +240,18 @@
    1.14  setup {* Nitpick_Isar.setup *}
    1.15  
    1.16  hide_const (open) unknown is_unknown bisim bisim_iterator_max Quot safe_The
    1.17 -    FinFun FunBox PairBox Word refl' wf' wf_wfrec wf_wfrec' wfrec' card' setsum'
    1.18 -    fold_graph' nat_gcd nat_lcm int_gcd int_lcm Frac Abs_Frac Rep_Frac zero_frac
    1.19 -    one_frac num denom norm_frac frac plus_frac times_frac uminus_frac
    1.20 +    FinFun FunBox PairBox Word prod refl' wf' wf_wfrec wf_wfrec' wfrec' card'
    1.21 +    setsum' fold_graph' nat_gcd nat_lcm int_gcd int_lcm Frac Abs_Frac Rep_Frac
    1.22 +    zero_frac one_frac num denom norm_frac frac plus_frac times_frac uminus_frac
    1.23      number_of_frac inverse_frac less_frac less_eq_frac of_frac
    1.24  hide_type (open) bisim_iterator fin_fun fun_box pair_box unsigned_bit signed_bit
    1.25      word
    1.26 -hide_fact (open) If_def Ex1_def rtrancl_def rtranclp_def tranclp_def refl'_def
    1.27 -    wf'_def wf_wfrec'_def wfrec'_def card'_def setsum'_def fold_graph'_def
    1.28 -    The_psimp Eps_psimp unit_case_def nat_case_def list_size_simp nat_gcd_def
    1.29 -    nat_lcm_def int_gcd_def int_lcm_def Frac_def zero_frac_def one_frac_def
    1.30 -    num_def denom_def norm_frac_def frac_def plus_frac_def times_frac_def
    1.31 -    uminus_frac_def number_of_frac_def inverse_frac_def less_frac_def
    1.32 -    less_eq_frac_def of_frac_def
    1.33 +hide_fact (open) If_def Ex1_def rtrancl_def rtranclp_def tranclp_def prod_def
    1.34 +    refl'_def wf'_def wf_wfrec'_def wfrec'_def card'_def setsum'_def
    1.35 +    fold_graph'_def The_psimp Eps_psimp unit_case_def nat_case_def
    1.36 +    list_size_simp nat_gcd_def nat_lcm_def int_gcd_def int_lcm_def Frac_def
    1.37 +    zero_frac_def one_frac_def num_def denom_def norm_frac_def frac_def
    1.38 +    plus_frac_def times_frac_def uminus_frac_def number_of_frac_def
    1.39 +    inverse_frac_def less_frac_def less_eq_frac_def of_frac_def
    1.40  
    1.41  end