TechWhirl (TECHWR-L) is a resource for technical writing and technical communications professionals of all experience levels and in all industries to share their experiences and acquire information.
For two decades, technical communicators have turned to TechWhirl to ask and answer questions about the always-changing world of technical communications, such as tools, skills, career paths, methodologies, and emerging industries. The TechWhirl Archives and magazine, created for, by and about technical writers, offer a wealth of knowledge to everyone with an interest in any aspect of technical communications.
Subject:Re: iff vs. if in documents From:SteveFJong -at- AOL -dot- COM To:techwr-l Date:Fri, 21 Jan 2000 9:18:25
The word "iff," meaning "if and only if," is pure jargon, arising from
Boolean logic. It is not an English word. I consider it a brother of the
construction "unless and until," and a more obscure nephew of the common
constructions "and/or." We routinely edit out "and/or;" no one's tried to
slip by "iff" at our company.
I would respectfully disagree with the statement that "if" and "iff" are
different, or even ambiguous, *in the English language.* The common meaning
of "if" is the same. You only have to remove all possibly avenues for
ambiguity, using "if and only if," if you are questioning Bill Clinton 8^)
Once you open the door to terms like this, your prose will become much
weaker.