ANDをClojureで実装する

def AND(x1,x2):
  w1,w2,theta = 0.5,0.5,0.7
  tmp = w1*x1+w2*x2
  if tmp <= theta:
    return 0
  else:
    return 1

(defn ADD [x1 x2]
 (let [w1 0.5 w2 0.5 theta 0.7 tmp (+ (* x1 w1) (* x2 w2))]
  (if (<= tmp theta)
   0
   1)))