שמע משותף

Hey everyone! I'm Ajinkya Yewale, PRN 41. Today we're going to talk about something really important in Theory of Computation — epsilon productions, and how to eliminate them from a context-free grammar. Okay so — what exactly is an epsilon production? In a context-free grammar, when a variable, let's say A, can produce the empty string — written as epsilon — we call that an epsilon production. So the rule looks like: A produces epsilon. Basically, the variable produces nothing. Exactly. Epsil