Internal definitions are recommended instead of `let` expressions, to reduce nesting.

This `match` expression can be simplified using `match-define`.

The `begin0` in this definition can be extracted into the surrounding definition context.

This `and` expression can be turned into a clause of the inner `match` expression, reducing nesting.

This expression is equivalent to calling the `positive?` predicate.

This use of `define-values` is unnecessary.

Use the `#:unless` keyword instead of `unless` to reduce loop body indentation.

Use the `#:when` keyword instead of `when` to reduce loop body indentation.

Using `cond` instead of `if` here makes `begin` unnecessary

`cond` with internal definitions is preferred over `if` with `let`, to reduce nesting

This `let` expression can be pulled up into a `define` expression.

Using `when` and `unless` is simpler than a conditional with an always-throwing branch.

This lambda function is equivalent to the built-in `positive?` predicate.

This `map` operation can be replaced with a `for/list` loop.

The `define` form supports a shorthand for defining functions.

This variable is returned immediately and can be inlined.

This `for/fold` loop can be simplified by using the `#:unless` keyword.

This `begin` form can be flattened into the surrounding definition context.

This negated `when` expression can be replaced by an `unless` expression.

This negated `unless` expression can be replaced by a `when` expression.