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src/HOL/Library/AList_Mapping.thy
changeset 59487 adaa430fc0f7
parent 58881 b9556a055632
child 60500 903bb1495239
equal deleted inserted replaced
59486:2025a17bb20f 59487:adaa430fc0f7 
    64 qed
 
    64 qed
 
    65 
    65 
    66 lemma [code nbe]:
 
    66 lemma [code nbe]:
 
    67   "HOL.equal (x :: ('a, 'b) mapping) x \<longleftrightarrow> True"
 
    67   "HOL.equal (x :: ('a, 'b) mapping) x \<longleftrightarrow> True"
 
    68   by (fact equal_refl)
 
    68   by (fact equal_refl)
 
    69   
    69 
    70 end
 
    70 end
 
       
    71
isabelle