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Suggested correction to make_inc and inc_2 as having `nat` types rather than `int`.
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dbenn 2021-03-13 12:26:11 +10:30 committed by GitHub
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@ -61,8 +61,8 @@ Locate "+".
(* Calling a function with insufficient number of arguments does not cause (* Calling a function with insufficient number of arguments does not cause
an error, it produces a new function. *) an error, it produces a new function. *)
Definition make_inc x y := x + y. (* make_inc is int -> int -> int *) Definition make_inc x y := x + y. (* make_inc is nat -> nat -> nat *)
Definition inc_2 := make_inc 2. (* inc_2 is int -> int *) Definition inc_2 := make_inc 2. (* inc_2 is nat -> nat *)
Compute inc_2 3. (* Evaluates to 5 *) Compute inc_2 3. (* Evaluates to 5 *)