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doc-src/TutorialI/ToyList2/ToyList1
changeset 26729 43a72d892594
parent 15141 a95c2ff210ba
child 27015 f8537d69f514
equal deleted inserted replaced
26728:1cfa52844c56 26729:43a72d892594 
     1 theory ToyList
 
     1 theory ToyList
 
     2 imports PreList
 
     2 imports Datatype
 
     3 begin
 
     3 begin
 
     4 
     4 
     5 datatype 'a list = Nil                          ("[]")
 
     5 datatype 'a list = Nil                          ("[]")
 
     6                  | Cons 'a "'a list"            (infixr "#" 65)
 
     6                  | Cons 'a "'a list"            (infixr "#" 65)
 
     7 
     7
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