Re: How detect grammar not derive nonterminals ?

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Subject	Re: How detect grammar not derive nonterminals ?
Date	Tue, 12 Sep 2023 22:08:52 -0700
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On Tuesday, September 12, 2023 at 10:42:28 AM UTC-7, Andy wrote:

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> How detect grammar not derive nonterminals ?

Ethernet uses the spanning tree protocol to detect loops in a switched network.

I think the same idea works here, but didn't try it.

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How detect grammar not derive nonterminals ? Andy <borucki.andrzej@gmail.com> - 2023-09-11 08:58 -0700
  Re: How detect grammar not derive nonterminals ? gah4 <gah4@u.washington.edu> - 2023-09-12 22:08 -0700
    Re: How detect grammar not derive nonterminals ? Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-14 03:41 +0000
      Re: How detect grammar not derive nonterminals ? gah4 <gah4@u.washington.edu> - 2023-09-14 20:04 -0700
  Re: How detect grammar not derive nonterminals ? Andy <borucki.andrzej@gmail.com> - 2023-09-13 13:17 -0700

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