title: For any language L over ∑*, L* L*=L*
body: <p>Learning this for one of my classes</p>
  
  <p>For every language L over ∑ * , L* L*=L*</p>
  
  <p>Is this true or false?</p>
  
  <p>I feel that it's false since because when you concatenate two languages the size of the elements is larger than either of the languages being concatenated. Am I thinking about this the right way?</p>