The text books on regular expressions show that: RR*=R* What I feel is that RR*=R(є + R + R^2 + R^3 ... ) =R + R^2 + R^3 + R^4 ... =R+ =R* - {є}
How come RR*=R* is true? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/algogeeks -~----------~----~----~----~------~----~------~--~---