Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.math Subject: Re: how Date: Wed, 17 Apr 2024 11:44:00 -0700 Organization: A noiseless patient Spider Lines: 57 Message-ID: References: <44eaef1b-35be-4b50-900b-52b010ba9aa0@att.net> <_g9BcdiKQ1epFrcvM4FSF2rZkN8@jntp> <7FlE2ap2lYCEKbW6F4ekYb8aZ3s@jntp> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Wed, 17 Apr 2024 20:44:01 +0200 (CEST) Injection-Info: dont-email.me; posting-host="e2583a017ace5d616772eafd574ebb78"; logging-data="1851950"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+K2qp/3ikjlRK6ghe03g3wXQuXqPyVzUw=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:aFyfNMokr3LcqC+ai26eDc+zRMU= In-Reply-To: Content-Language: en-US Bytes: 3056 On 4/16/2024 11:02 PM, FromTheRafters wrote: > Chris M. Thomasson used his keyboard to write : >> On 4/16/2024 10:47 PM, FromTheRafters wrote: >>> Richard Damon formulated the question : >>>> On 4/16/24 10:59 AM, WM wrote: >>>>> Le 16/04/2024 à 00:38, Richard Damon a écrit : >>>>> >>>>>> Name a Natural Number that can not be doubled!!! >>>>>> >>>>> All nameable numbers belong to a potentially infinite collection, a >>>>> very small initial segment of ℕ. >>>>>> >>>>>>>> Thus, doubling ALL the Natural Numbers still gives you results >>>>>>>> that are all Natural Numbers. >>>>>>> >>>>>>> Impossible, since all are doubled. >>>>>> >>>>>> POSSIBLE!!!! >>>>>> >>>>>> That is the "miracle" of INFINITY. >>>>> >>>>> No, it is the incongruence of thinking. >>>>> For potential infinity it is true. But for actual infinity it is >>>>> wrong. >>>>> >>>>> Regards, WM >>>>> >>>>> >>>> Why? >>>> >>>> What number in the set of Natual Numbers doesn't have another >>>> Natural Number that is twice it? >>> >>> Zero? >> >> Is zero a natural number? > > Sometimes. :) > > Is it too late to apply for poetic license? Touche. Basically, you forced me to laugh right here, and think at the same time! Thanks. :^D > >> Yikes! Well, how to denote 42 - 42 = 0 ;^) > > Subtraction is only a partial function in the positive and non-negative > integers. How do we represent a natural number being subtracted from itself? Have to go into the integers where there is a zero? Heck, even the unsigned integers... ;^) lol. Thanks again.