I still maintain that there's a difference between quantifiable stochastic approaches (where one can state definitively how likely it is that the number is non-prime) and Monte Carlo approaches (where one throws possible disconfirming values at it until one "feels confident" that it's "tested enough").

If the nature of your regexps were such that you could say "of the possible million values in the range, we have tested a randomly selected 10% of them, and thus we are reasonably confident that the regexps will work for all values", I'd be willing to consider it as evidence, if not functional proof. But with a potentially infinite range for the regexps, I wouldn't even consider it evidence.

Take care,

Mickey.

In reply to Re^6: Comparative satisfiability of regexps. by Meowse
in thread Comparative satisfiability of regexps. by Meowse

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.