Regarding, re.
Abbreviation of "recursively enumerable"; the class of decision problems for which a 'yes' answer can be verified by a Turing machine in a finite amount of time.
not, does not, do not, etc.
without
like
vehement rejection of truthfulness
disgust
mild disapproval
a negating expression; an answer that shows disagreement, denial, refusal, or disapproval
a vote not in favor, or opposing a proposition
Not any.
Hardly any.
Not (a); not properly, not really; not fully.
Not any possibility or allowance of (doing something).
Used before different, before comparatives with more and less, and idiomatically before other comparatives.
not
Used idiomatically before certain other adjectives.
Used to show disagreement, negation, denial, refusal, or prohibition.
Used together with an affirmative word or phrase to show agreement.
Used to show agreement with a negative question.