One quick question: "The set of all strings we can derive from a single axiom by repeatedly applying a single rule is called a transitive closure, or just a closure." Where does the name "closure" come from? How is this related to a variable-binding-capturing "closure", as in &closure in 

{
 my $foo;
 sub closure {
  $foo++
 }
}

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(I know, I'm getting into lvalues here.)

Warning: Unless otherwise stated, code is untested. Do not use without understanding. Code is posted in the hopes it is useful, but without warranty. All copyrights are relinquished into the public domain unless otherwise stated. I am not an angel. I am capable of error, and err on a fairly regular basis. If I made a mistake, please let me know (such as by replying to this node).

In reply to Re: MOPT-04 - identification, part 2 by theorbtwo
in thread MOPT-04 - identification, part 2 by mstone

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