Re: Boolean operators without commutators vs. ALL/ANY

On Fri, Jun 17, 2011 at 05:21:10PM +0200, Florian Pflug wrote:
> On Jun17, 2011, at 17:15 , Ross J. Reedstrom wrote:
> > On Fri, Jun 17, 2011 at 10:20:04AM -0400, Alvaro Herrera wrote:
> >> Excerpts from Florian Pflug's message of vie jun 17 10:03:56 -0400 2011:
> >>
> >>> How is that worse than the situation with "=~" and "~="?
> >>
> >> With =~ it is to the right, with ~= it is to the left.
> >
> > To throw my user opinion into this ring (as a long time user of regexes
> > in many different systems) I've always taken the ~ to be short hand for
> > the 'approximately' notation (a squiggly equals) which has good semantic
> > match in my mind: a regex match is sort of a fuzzy equality. With that
> > model, the suggested pair is fairly mnemonic - the 'fuzzy' part i(the
> > pattern) is next to the squiggles, the 'concrete' part goes by the
> > equals.
>
> Hey, that's my mnemonic device! ;-)
>

Ah, good, so since this is almost mathematics, and we have two
instances, that's a proof then. :-)

Ross
--
Ross Reedstrom, Ph.D.                                 reedstrm@rice.edu
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