Re: [isabelle] HOL-Word contains trivial lemmas

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

We should definitely remove these two.


> On 16 Apr 2015, at 4:36 pm, Lars Hupel <hupel at> 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


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