+(eval-when-compile
+ (%compile-defmacro 'defmacro
+ (lambda (name args &rest body)
+ `(eval-when-compile
+ (%compile-defmacro ',name (lambda ,args ,@body))))))
+
+(defmacro defvar (name value)
+ `(progn
+ (eval-when-compile
+ (%compile-defvar ',name))
+ (setq ,name ,value)))
+
+(defmacro defun (name args &rest body)
+ `(progn
+ (eval-when-compile
+ (%compile-defun ',name))
+ (fsetq ,name (lambda ,args ,@body))))
+
+(defun = (x y) (= x y))
+(defun + (x y) (+ x y))
+(defun - (x y) (- x y))
+(defun * (x y) (* x y))
+(defun / (x y) (/ x y))
+(defun 1+ (x) (+ x 1))
+(defun 1- (x) (- x 1))
+(defun cons (x y ) (cons x y))
+(defun car (x) (car x))
+(defun cdr (x) (cdr x))
+
+(defun append (list1 list2)
+ (if (null list1)
+ list2
+ (cons (car list1)
+ (append (cdr list1) list2))))
+
+(defun reverse-aux (list acc)
+ (if (null list)
+ acc
+ (reverse-aux (cdr list) (cons (car list) acc))))
+
+(defun reverse (list)
+ (reverse-aux list '()))
+
+(defun mapcar (func list)
+ (if (null list)
+ '()
+ (cons (funcall func (car list))
+ (mapcar func (cdr list)))))
+
+(defmacro push (x place)
+ `(setq ,place (cons ,x ,place)))
+
+(defvar *package* (new))
+
+(defun intern (name)
+ (set *package* name (make-symbol name)))
+
+(defun find-symbol (name)
+ (get *package* name))