title: Semantics of the Boolean and comparison operators in the context of three-valued-logic
body: <p>Professor ask me this question:</p>
  
  <p><strong><em>What is the semantics of the Boolean and comparison operators in the context of three-valued-logic?</em></strong> </p>
  
  <p>I'm not sure what he meant by that. What is comparison operator? Is that the same as relational operator? Semantics? He asking about 'meaning' of those two terms in context of three-valued-logic?</p>
  
  <p>Thanks.</p>