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;;;; Under Creative Commons Attribution-ShareAlike 4.0
;;;; International. See
;;;; <https://creativecommons.org/licenses/by-sa/4.0/>.
(define-module (net ricketyspace sicp one fortyone)
#:export (double inc))
(define (double func)
(lambda (x) (func (func x))))
(define (inc x) (1+ x))
;;; GNU Guile REPL
;;; scheme@(guile-user)> ,use (net ricketyspace sicp one fortyone)
;;; scheme@(guile-user)> (((double (double double)) inc) 5)
;;; $9 = 21
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