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Re: [ontolog-forum] txtbk on logic

To: Chris Menzel <cmenzel@xxxxxxxx>, "[ontolog-forum]" <ontolog-forum@xxxxxxxxxxxxxxxx>
From: Waclaw Kusnierczyk <Waclaw.Marcin.Kusnierczyk@xxxxxxxxxxx>
Date: Sun, 22 Jul 2007 19:46:50 +0200
Message-id: <46A3980A.4010806@xxxxxxxxxxx>
Thanks.    (01)

The one you propose has some nasty comments on amazon, perhaps from 
less-than-average students.    (02)

vQ    (03)

Chris Menzel wrote:
> On Wed, Jun 20, 2007 at 08:12:52PM +0200, Waclaw Kusnierczyk wrote:
>> has any one of you an opinion on 'introduction to logic' by copi and
>> cohen?
> It's OK as a basic, reasonably comprehensive intro logic text for
> average students.  That said, IIRC, the natural deduction system they
> use is an inelegant hash of primitive rules, derivable rules, and
> substitution patterns.  (Admittedly, Copi and Cohen cover more than just
> deductive logic.)  In my view, the best general intro to deductive logic
> for both average students and good/excellent students is Bergman, Moor,
> and Nelson's _The Logic Book_.  This text first builds natural deduction
> systems The Right Way :-) using primitive introduction and elimination
> rules only, and only thereafter extends the systems by introducing
> derived rules, showing in each case *that* the new rule is derivable
> from the primitive rules.    (04)

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