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src/HOL/Induct/ABexp.thy
changeset 58310 91ea607a34d8
parent 58249 180f1b3508ed
child 58889 5b7a9633cfa8
equal deleted inserted replaced
58309:a09ec6daaa19 58310:91ea607a34d8 
     6 
     6 
     7 theory ABexp
 
     7 theory ABexp
 
     8 imports Main
 
     8 imports Main
 
     9 begin
 
     9 begin
 
    10 
    10 
    11 datatype_new 'a aexp =
 
    11 datatype 'a aexp =
 
    12     IF "'a bexp"  "'a aexp"  "'a aexp"
 
    12     IF "'a bexp"  "'a aexp"  "'a aexp"
 
    13   | Sum "'a aexp"  "'a aexp"
 
    13   | Sum "'a aexp"  "'a aexp"
 
    14   | Diff "'a aexp"  "'a aexp"
 
    14   | Diff "'a aexp"  "'a aexp"
 
    15   | Var 'a
 
    15   | Var 'a
 
    16   | Num nat
 
    16   | Num nat
isabelle