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Re: The type/object distinction and possible synthesis of OOP and imperative programming languages

References <CAMjeLr_7A-NRtec=K_ZsjXA_oJHnD6+vpttz4Ma0vtDRbb+o2w@mail.gmail.com> <CAOvMSvXy=iJhUtMfncv-RE3HQw+7DJO-M1-TaeAFFhnDe9mpUA@mail.gmail.com> <BLU173-W31425FA225FA31B42E5B91CDCC0@phx.gbl> <mailman.804.1366325597.3114.python-list@python.org> <10511876-84bf-41f5-ad96-cf4ee5a6973e@di5g2000pbc.googlegroups.com>
Date 2013-04-18 20:58 -0700
Subject Re: The type/object distinction and possible synthesis of OOP and imperative programming languages
From Mark Janssen <dreamingforward@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.811.1366343902.3114.python-list@python.org> (permalink)

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>> The main thing that I notice is that there is a heavy "bias" in
>> academia towards mathematical models.
>
> Yeah wonderful observation. Lets clean up!
>
> If I have a loop:
>
>  while i < len(a) and a[i] != x:
>    i++
>
> I need to understand that at the end of the loop:
> i >= len(a) or a[i] == x
> and not
> i >= len(a) and a[i] == x
> nor
> i == len(a) or a[i] == x  # What if I forgot to initialize i?

You know in my world, we have what's called Input/Output, rather than
punchcards or switchbanks where you come from.  Why not:  "print
i,a[i]".  Done!

> Now why bother to teach students such a silly thing (and silly name)
> as deMorgan?

Well deMorgan falls into BooleanLogic which I'm arguing is distinct
from the the mathematical realm where the lambda calculus wizards come
from.  So that's my camp, thanks.

> So all hail to your project of cleaning up the useless math from CS.

Yes, on useless math, no on *useful* math.  Thanks.

> And to whet your appetite for the grandeur and glory of your
> visionings why not start with making music schools enroll tone-deaf
> students?  Why wasn't Beethoven deaf?

Beethoven was deaf.

> You need to study some history (or is that irrelevant like math?)
> The Turing who invented the Turing machine in 1936 led the code-
> cracking efforts of the allies a couple of years later.
> Do you allow for the fact that he may have had abilities that were
> common to both aka 'math' 'theory' etc?
> Or do you believe that winning wars is a theoretical and irrelevant
> exercise?

Please, I don't dismiss math anymore than a number theorist might
dismiss the realm of complex numbers.

> Yes there is some truth in what you say.  Just call it logic as object-
> language (what you call logic-gates) and logic as meta-language ie
> logic for reasoning

Right, and I'm arguing that there hasn't been enough conceptual
separation between the two.  So why are you arguing?

> Also good to study the views of one of the doyens of OOP:
> http://en.wikipedia.org/wiki/Alexander_Stepanov#Criticism_of_OOP

That's a very good reference.  It voices some of my points that are in
criticism of python's object architecture.
-- 
MarkJ
Tacoma, Washington

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Thread

Re: [TYPES] The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-18 15:53 -0700
  Re: The type/object distinction and possible synthesis of OOP and imperative programming languages rusi <rustompmody@gmail.com> - 2013-04-18 20:35 -0700
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Mark Janssen <dreamingforward@gmail.com> - 2013-04-18 20:58 -0700
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Chris Angelico <rosuav@gmail.com> - 2013-04-19 17:05 +1000
    Re: The type/object distinction and possible synthesis of OOP and imperative programming languages Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-04-19 18:58 -0400

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