anna would tell the truth that she lied yesterday on monday. answer yesbjorn
would say no on monday because he did tell the truth sunday as well as on
the monday. answer no
2008/11/7 Randy MacDonald <[EMAIL PROTECTED]>
> Hello Raul;
>
> Just in case...
>
> er, isn't Monday the answer? Anna lied on Fri Sat and Sun, and Bjorn on Tue
> Wed Thu and Sun. They both lied on Sunday, which was yesterday on Monday...
> unless I am missing something.
>
> Raul Miller wrote:
>
>> On Sun, Oct 26, 2008 at 11:16 AM, Björn Helgason <[EMAIL PROTECTED]>
>> wrote:
>>
>>
>>> Another experiment
>>> We have two people Anna and Björn
>>> They tell the truth on following days
>>>
>>> annas=. 'Monday';'Tuesday';'Wednesday';'Thursday'
>>>
>>> bjorns=.'Sunday';'Monday';'Friday';'Saturday'
>>>
>>> Did you tell a lie yesterday?
>>>
>>> What day did they both answer yes?
>>>
>>>
>>
>> days=:;:'Sunday Monday Tuesday Wednesday Thursday Friday Saturday'
>> cool=: #&days :.(days&e.)
>> warm=: days&e. :.(#&days)
>> annas=: cool 0 1 1 1 1 0 0
>> bjorns=:cool 1 1 0 0 0 1 1
>> admit=: (~: _1&|.)&.warm
>> annas *.&.warm&(admit) bjorns
>> +------+
>> |Friday|
>> +------+
>>
>> Note that my expressions for defining annas and bjorns look
>> different from yours but produce the same results. You could
>> replace mine with yours, if you prefer.
>>
>>
>>
>
> --
> ------------------------------------------------------------------------
> |\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram)
> |/\| ramacd <at> nbnet.nb.ca |
> |\ | | The only real problem with APL is that
> BSc(Math) UNBF'83 | it is "still ahead of its time."
> Sapere Aude | - Morten Kromberg
> Natural Born APL'er |
> -----------------------------------------------------(INTP)----{ gnat }-
>
>
>
>
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