I am trying to solve a problem set to practice for an exam. How can I approach questions like these ? Is there a way to verify solutions or is it just trial and error ?

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    $\begingroup$ Could you do it if asked to find all binary numbers greater than 1. How about all binary numbers greater than 10? $\endgroup$ Feb 24, 2022 at 16:15
  • $\begingroup$ @RickDecker is it 1*01* ? $\endgroup$
    – Ash Rivers
    Feb 24, 2022 at 17:00
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    $\begingroup$ Don't guess. Try to think how these numbers look like. $\endgroup$ Feb 24, 2022 at 17:00
  • $\begingroup$ It might be a trifle easier if instead you made a FA for the language. $\endgroup$ Feb 24, 2022 at 19:23

1 Answer 1


If a number is more than 6 bits long (not counting leading zeroes) then it is certainly larger than your number. Otherwise, it is one of finitely many numbers, preceded by an arbitrary number of leading zeroes.


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