categories - Category Theory list
 help / color / mirror / Atom feed
* 2 is an unexampled even prime
@ 2015-11-15  2:23 pjf
  2015-11-21  2:02 ` Vaughan Pratt
  0 siblings, 1 reply; 2+ messages in thread
From: pjf @ 2015-11-15  2:23 UTC (permalink / raw)
  To: categories; +Cc: fejlinton

I wrote that I didn't know what "unexampled richness" means. Fred
Linton was the first to tell me that it means unparalleled. Indeed,
the Oxford English Dictionary gives the definition:

    Having no preceding or similar example; unprecedented, unparalleled.

and lists 7 citations, the earliest from 1610.

Sounds like a contradiction to me.


[For admin and other information see: http://www.mta.ca/~cat-dist/ ]


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: 2 is an unexampled even prime
  2015-11-15  2:23 2 is an unexampled even prime pjf
@ 2015-11-21  2:02 ` Vaughan Pratt
  0 siblings, 0 replies; 2+ messages in thread
From: Vaughan Pratt @ 2015-11-21  2:02 UTC (permalink / raw)
  To: categories

"Even" can be dropped.  There being no preceding such, 2 is an
unexampled prime.

The occasion of two centuries (to within the very month) after Boole's
birth is a most auspicious one to point out that, as a prime number, the
number of solutions of x^2 = x is unprecedented.

Vaughan

On 11/14/2015 6:23 PM, pjf wrote:
> I wrote that I didn't know what "unexampled richness" means. Fred
> Linton was the first to tell me that it means unparalleled. Indeed,
> the Oxford English Dictionary gives the definition:
>
>     Having no preceding or similar example; unprecedented, unparalleled.
>
> and lists 7 citations, the earliest from 1610.
>
> Sounds like a contradiction to me.

[For admin and other information see: http://www.mta.ca/~cat-dist/ ]


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2015-11-21  2:02 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-11-15  2:23 2 is an unexampled even prime pjf
2015-11-21  2:02 ` Vaughan Pratt

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).