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Re^6: Hash key composition with a comma? (updated)

by LanX (Archbishop)
on Mar 18, 2018 at 13:46 UTC ( #1211186=note: print w/replies, xml ) Need Help??


in reply to Re^5: Hash key composition with a comma?
in thread Hash key composition with a comma?

> Firstly, examples are not proofs "in the sciences" unless they are counterexamples

Yeah, but effectively that's what Your Mother was asking for, a counterexample for the thesis that multidimensional hashes are safe.

Hence a "proof" according to you. ;)

update

to elaborate more: every example proofs something, but not every proof needs an example.

Or in formal notation:

Example => Proof

So of course YM's "aka" is not correct in mathematics.

But in IT it's important to see how likely a problem is, because nothing is without risk.

For instance the same problem might be easily solved with multidimensional keys, where hashes of hashes have a higher risk to run out of space or to be vulnerable of bugs because of higher algorithmic complexity.

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

Replies are listed 'Best First'.
Re^7: Hash key composition with a comma? (updated)
by sauoq (Abbot) on Mar 18, 2018 at 16:25 UTC
    Yeah, but effectively that's what Your Mother was asking for, a counterexample for the thesis that multidimensional hashes are safe. . . . So of course YM's "aka" is not correct in mathematics.

    Your first point is well-taken, but yes, it was the "AKA" that prompted me to underscore the difference.

    I might not like gratuitous pedantry, but that's only when others do it. ;-)

    -sauoq
    "My two cents aren't worth a dime.";

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