Re^3: Multiple numeric not or compare in if statement

if (($a == 3) || ($a == 77) || ($a == 8)) -- is equivalent to -- if (($a != 3) && ($a != 77) && ($a != 8))
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No, those two aren't equivalent, they're exact opposites. It seems you didn't apply what you said:

when changing the nested logic in a condition such as that you must necessarily change the higher level logic if you wish for the original to be equivalent to the negated version.

if (($a == 3) || ($a ==  77) || ($a == 8))
-- is equivalent to --
if (!( ($a != 3) && ($a !=  77) && ($a != 8) ))
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Re^4: Multiple numeric not or compare in if statement by perlfan (Parson) on Jul 02, 2020 at 13:27 UTC
Thanks, updated. Meant to show the exact opposite; said the opposite thing instead.	[reply]