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structure ROOT =
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struct
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structure HOL =
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struct
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21993
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fun nota false = true;
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21341
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end; (*struct HOL*)
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structure Nat =
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struct
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datatype nat = Zero_nat | Suc of nat;
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21993
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fun less_nat Zero_nat (Suc n) = true;
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21341
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fun less_eq_nat m n = HOL.nota (less_nat n m);
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end; (*struct Nat*)
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structure Codegen =
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struct
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21993
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fun in_interval (k, l) n = (Nat.less_eq_nat k n andalso Nat.less_eq_nat n l)
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| in_interval (k, l) n =
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(Nat.less_eq_nat k n andalso Nat.less_eq_nat n l);
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21341
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end; (*struct Codegen*)
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end; (*struct ROOT*)
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