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From: Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups: comp.programming,alt.algebra.help
Subject: Re: on cut edges and bonds, graph theory
Date: Sat, 23 Sep 2017 02:27:45 +0100
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William Elliot <marsh@panix.com> writes:

> On Thu, 21 Sep 2017, Ben Bacarisse wrote:
>> William Elliot <marsh@panix.com> writes:
>> > On Wed, 20 Sep 2017, Ben Bacarisse wrote:
>> >> William Elliot <marsh@panix.com> writes:
>
>> >> >> >> ...  The book uses an over bar for that case: [S, S?E].
>> >> >> >> 
>> >> >> >> For [A, B] to be an edge cut, A ?H? B = V, A ?H? B = {}, A =/= {} and
>> >> >> >> B =/= {}.
>> >> >> > What does S?E and ?H? mean?
>> >> >> 
>> >> >> They means that some software has had trouble with the Content-Type of
>> >> >> my post.  They are the transliteration chosen by that software for byte
>> >> >> sequences representing a combining overline, set union and set
>> >> >> intersection.
>> >> >
>> >> > Usenet is old fashion.  Such stuff doesn't communicate well.
>> >
>> > It worked much better than the new fangled stuff.
>> > One example is mathstack.
>> 
>> Eh?  I post on Usenet because it works well -- much better than
>> mathstack.
>
> Mathstack is an example of new fangled trashiness.

Yes, I know, but I can't see the point in referencing it.  There are
examples of bad new things and of good new things.  There's no point in
referring to examples of either unless they somehow relate to the point
being discussed.

>> >> I prefer to think of some software as old fashioned.  With a 
>> >> little help, Usenet is fit for the 21st Century.
>> >
>> > The new fangled stuff might work better were it designed better, 
>> > standardized special characters and didn't throw in the kitchen 
>> > sink, ie cram it with too much stuff.
>> 
>> When it comes to standards, it's inevitable that many people -- even
>> most -- will be disappointed.  But it's done now and it works well
>> enough.
>
> ASCII is a good standard but MicroStuff and others refuse to use it 
> with multiple character punctuation marks that appear differently with 
> different readers.

Again, I not sure why you are saying this.  Some software is broken.
That's not news.

>> >> > We use various other plain text symbols for intersection and union.
>> >> 
>> >> Who is "we"?
>> >
>> > Those of us who wrote, learned and taught math in plain text ascii on 
>> > Usenet.
>> 
>> Ah, right.  It's an odd word to use since I too learned that but I
>> appear not to be included in the "we".
>
> We stuck with ascii.

I am still not included in the "we" so it's wrong to talk about "we"
having done anything.  *You* stuck with ASCII, and I hope it turns out
to be a good choice for you.

> This discussion started with asking what strange 
> byte clusters meant.

Yes, and I explained what they meant.  You can now contribute to the
discussion.  Did you have anything to say about the topic, or did you
just want to complain about the three characters you could not identify?

<snip>
-- 
Ben.