Entries from 2015-09-25 to 1 day
;; 2.86 ;;;;;;;;;;;;; ;; 汎用演算 ;; ;;;;;;;;;;;;; (define (equ? x y) (apply-generic 'equ? x y)) (define (project x) (apply-generic 'project x)) (define (raise x) (apply-generic 'raise x)) (define (add x y) (apply-generic 'add x y)) (defin…