Re: [isabelle] HOL-Word contains trivial lemmas



Looks like the [simplified] does now more than it used to.

We should definitely remove these two.

Cheers,
Gerwin

> On 16 Apr 2015, at 4:36 pm, Lars Hupel <hupel at in.tum.de> wrote:
>
> It appears that there are two occurrences of "True" in HOL-Word:
>
> lemma "True"
>
> Auto solve_direct: The current goal can be solved directly with
>  HOL.TrueI: True
>  Word_Miscellaneous.z1pdiv2': True
>  Word_Miscellaneous.z1pmod2': True
>
> The definitions of these lemmas are:
>
> lemmas z1pmod2' = zero_le_one [THEN pos_zmod_mult_2, simplified]
> lemmas z1pdiv2' = zero_le_one [THEN pos_zdiv_mult_2, simplified]
>
> This is already the case for Isabelle2014.
>
> I guess the header of the Word_Miscellaneous theory is even more spot on
> than Florian intended :-)
>
> header {* Miscellaneous lemmas, of at least doubtful value *}
>
> Cheers
> Lars
>


________________________________

The information in this e-mail may be confidential and subject to legal professional privilege and/or copyright. National ICT Australia Limited accepts no liability for any damage caused by this email or its attachments.




This archive was generated by a fusion of Pipermail (Mailman edition) and MHonArc.