Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Ben Bacarisse Newsgroups: comp.programming,alt.algebra.help Subject: Re: on cut edges and bonds, graph theory Date: Wed, 20 Sep 2017 14:28:51 +0100 Organization: A noiseless patient Spider Lines: 28 Message-ID: <87efr17b3g.fsf@bsb.me.uk> References: <86wp4w3sz5.fsf@toledo.com> <87shfjpzgs.fsf@bsb.me.uk> <878thaq4ff.fsf@bsb.me.uk> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: reader02.eternal-september.org; posting-host="c18f41db8b21de350c4de23a11baeead"; logging-data="7626"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+01j87a+V0X4BLPNfxsfygCs0B35o/SeQ=" Cancel-Lock: sha1:IpdbnQLBn/vohStqhbCk49wdlBY= sha1:dinsBro/LDxdWxwbZjEMlG3s8Fg= Xref: csiph.com comp.programming:8017 alt.algebra.help:5005 William Elliot writes: > On Tue, 19 Sep 2017, Ben Bacarisse wrote: >> William Elliot 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. I prefer to think of some software as old fashioned. With a little help, Usenet is fit for the 21st Century. > We use various other plain text symbols for intersection and union. Who is "we"? -- Ben.