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Groups > comp.lang.python > #91404

Re: Logic problem: need better logic for desired thruth table.

From Grant Edwards <invalid@invalid.invalid>
Newsgroups comp.lang.python
Subject Re: Logic problem: need better logic for desired thruth table.
Date 2015-05-28 22:54 +0000
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <mk86av$7bc$1@reader1.panix.com> (permalink)
References <3794b$55678d83$5419aafe$56138@news.ziggo.nl> <67de616e-5af7-417d-88a9-db1c665df473@googlegroups.com> <mailman.143.1432851416.5151.python-list@python.org>

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On 2015-05-28, Michael Torrie <torriem@gmail.com> wrote:
> On 05/28/2015 03:58 PM, sohcahtoa82@gmail.com wrote:
>> I think the logic you're really looking for is:
>> 
>> return BotWaitForCooldown or (not (BotWaitForCooldown or CooldownDetected))
>
> Yes this is the simplest form.

Not really.


In old school notation, that's
            ___
        A + A+B      

Apply De Morgan's law to the second term        
            _   _
       A + (A * B)

Invert
       ________
            _ _
       A + (A*B)

Apply Demorgan's law once
            _____
       _    _   _
       A * (A * B)

and again for the second term
       _       
       A * (A + B)

Apply the distributive property:

       _     _
       A*A + A*B

The first term is always false, so we can drop it:
       _
       A*B

Now invert it again to cancel out the one we did back a few steps:

       ___
       _
       A*B

De Morgan one last time:
           _
       A + B
       
-- 
Grant Edwards               grant.b.edwards        Yow! Xerox your lunch
                                  at               and file it under "sex
                              gmail.com            offenders"!

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Thread

Logic problem: need better logic for desired thruth table. "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-28 23:50 +0200
  Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-28 23:55 +0200
    Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 00:07 +0200
      Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 00:08 +0200
        Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 00:12 +0200
          Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 04:45 +0200
            Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 04:56 +0200
        Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) Grant Edwards <invalid@invalid.invalid> - 2015-05-28 22:13 +0000
          Re: Logic problem: need better logic for desired thruth table. (thruth table to logic/boolean operations generator sought/needed) Grant Edwards <invalid@invalid.invalid> - 2015-05-28 22:15 +0000
  Re: Logic problem: need better logic for desired thruth table. sohcahtoa82@gmail.com - 2015-05-28 14:58 -0700
    Re: Logic problem: need better logic for desired thruth table. Michael Torrie <torriem@gmail.com> - 2015-05-28 16:16 -0600
      Re: Logic problem: need better logic for desired thruth table. Grant Edwards <invalid@invalid.invalid> - 2015-05-28 22:54 +0000
        Re: Logic problem: need better logic for desired thruth table. Grant Edwards <invalid@invalid.invalid> - 2015-05-28 23:03 +0000
          Re: Logic problem: need better logic for desired thruth table. Michael Torrie <torriem@gmail.com> - 2015-05-28 18:52 -0600
      Re: Logic problem: need better logic for desired thruth table. sohcahtoa82@gmail.com - 2015-05-28 17:15 -0700
    Re: Logic problem: need better logic for desired thruth table. Denis McMahon <denismfmcmahon@gmail.com> - 2015-05-28 23:25 +0000
      Re: Logic problem: need better logic for desired thruth table. "Skybuck Flying" <skybuck2000@hotmail.com> - 2015-05-29 04:46 +0200
  Re: Logic problem: need better logic for desired thruth table. Grant Edwards <invalid@invalid.invalid> - 2015-05-28 22:01 +0000
    Re: Logic problem: need better logic for desired thruth table. Grant Edwards <invalid@invalid.invalid> - 2015-05-28 22:11 +0000
  Re: Logic problem: need better logic for desired thruth table. Tim Chase <python.list@tim.thechases.com> - 2015-05-28 17:02 -0500
  Re: Logic problem: need better logic for desired thruth table. Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2015-05-29 01:13 +0300
  Re: Logic problem: need better logic for desired thruth table. Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-05-28 18:39 -0400
    Re: Logic problem: need better logic for desired thruth table. Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-05-28 23:56 +0100
  Re: Logic problem: need better logic for desired thruth table. Paul <nospam@needed.com> - 2015-05-28 19:21 -0400
  Re: Logic problem: need better logic for desired thruth table. M Philbrook <jamie_ka1lpa@charter.net> - 2015-05-29 19:07 -0400

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