title: how to add more outputs to neural networks?
body: <p>Of course no one making a neural network for image recognition and classification can make place for all possible image outputs. so If I make a neural network that takes the array input and get the output as a bird or not a bird. can I add more outputs for more images after I finish learning the first network or that will make the learning vanish.</p>
  
  <p>so I add fixed input number and 1 output then I add 1 more and 1 more is that applicable or no?</p>