It's not equivalent, so it's not commutative.
Vulgar means ordinary, ... It's actually redundant.

In both cases, the problem is not with the strict interpretation of the descriptions, but rather with the inadequacy of the explanations as to their consequences.

Most every programmer, new or old, good or mediocre, understands that x-y is different to y-x, but perhaps only 5% or so would ever describe subtraction as non-communicative. And far less as "commutatively broken".

Beyond the value judgement that certain combinations of letters (words), are deemed vulgar in some circles, the only relatively common use of the word vulgar is "vulgar fractions". Also known as "common fractions". Which basically reduces to just "fractions".

Neither the sentence nor the overall understanding is enhanced by the use of "vulgar" in that position. It is technical or scientific language used to convey a false impression of meaningful technical or scientific content. Which is one (of the more polite), definitions of "technobabble".

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP PCW It is as I've been saying!(Audio until 20090817)

In reply to Re^3: Perl 5.11.0 now available by BrowserUk
in thread Perl 5.11.0 now available by Anonymous Monk

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