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Create an AND using ORs and NOTs
Authored by: Gabriel on May 12, '05 02:50:43PM

Here's a way to get an AND using only ORs and NOTs
If I remember my logic correctly DeMorgan's law states that

A AND B = (NOT ((NOT A) OR (NOT B)))
This basically means that if either A or B is false than the whole statement is false, which is the same as saying A AND B is true. So assuming that spotlight doesn't support ANDs you can create one by saying:

(-((-fish)|(-cat)))

Unfortunately I don't have my mac with me to test this - hopefully Spotlight supports nested statements.



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Create an AND using ORs and NOTs
Authored by: lallmen on May 12, '05 03:39:03PM

Just out of curiosity, why do not simply use:

fish&cat



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Create an AND using ORs and NOTs
Authored by: strikeman on May 12, '05 08:42:47PM
The default behaviour is AND ie typing
fish cat
is the same as
fish AND cat


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It works, but it's kludgy
Authored by: Lectrick on May 13, '05 12:17:52AM

Either it works (I checked), or it's just doing a straight-up AND between "fish" and "cat" and ignoring the rest...

an AND is simply a space, of course.

---
In /dev/null, no one can hear you scream



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