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Revising Interpreters before class
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@ -249,6 +249,7 @@ Example factorial_ugly :=
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* them from our examples. *)
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Coercion Const : nat >-> arith.
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Coercion Var : var >-> arith.
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Declare Scope arith_scope.
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Infix "+" := Plus : arith_scope.
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Infix "-" := Minus : arith_scope.
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Infix "*" := Times : arith_scope.
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