Practice question

Ned Batchelder ned at nedbatchelder.com
Mon Oct 6 01:14:27 CEST 2014


On 10/5/14 7:02 PM, Seymore4Head wrote:
> For the record, I don't want a hint.  I want the answer.
> I see a practice question is similar to this.
> 15 <= x < 30  And it wants a similar expression that is equivalent.
> So the right answer is 15<= x or x <30

No, "15 <= x < 30" is equivalent to "15 <= x and x < 30".

> but one of the other answers is
> not (15<= x and x <30)

You are speaking ambiguously.  Which did you mean:
a) one of the other answers isn't "15 <= x and x < 30", or:
b) one of the other answers is "not (15 <= x and x < 30)" ?

-- 
Ned Batchelder, http://nedbatchelder.com




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