I wasn't looking for a lesson. Thank you very little. On Thu, Jan 20, 2011 at 3:57 PM, john gilmore <[email protected]>wrote:
> I was looking this morning at data on non-multiple and multiple human > births in which live births were classified as single(si), double(do), > triple(tr), quadruple (qa), or quintuple (qi). > > Now if one were interested only in single births it would be folly to write > > ¬do & ¬tr & ¬qa & ¬qi > > instead of writing just > > si > > If, on the other hand, one were interested in all multiple births it would > also be folly to write > > do | tr | qa | qi > > instead of writing just > > ¬si > > because someone had taught you that negative logic was 'bad'. > > NOT logic may be awkward, or again it may be felicitous. What is always > and everywhere inexcusable is the replacement of thinking with slogans. > ROT is an apposite acronym for rule of thumb. The mentors who retailed > these dubious notions would have done better to teach fewer|none of them and > more substantive logic. > > > > > John Gilmore Ashland, MA 01721-1817 USA > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > -- Mark D Pace Senior Systems Engineer Mainline Information Systems ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
