Hi Bruno Marchal How can that be ? I'll try to keep that in mind that the natural numbers are concrete, but to me at least concrete things are physical (exist in spacetime) while numbers are nonphysical (exist outside of spacetime).
Roger , [email protected] 8/18/2012 Leibniz would say, "If there's no God, we'd have to invent him so everything could function." ----- Receiving the following content ----- From: Bruno Marchal Receiver: everything-list Time: 2012-08-18, 09:46:24 Subject: Re: The difference betrween abstract and concrete On 18 Aug 2012, at 13:59, Roger wrote: Hi meekerdb -- I go with the dictionary: ab穝tract/ab strakt/ Adjective:Existing in thought or as an idea but not having a physical or concrete existence. con穋rete/k n kret/ Adjective:Existing in a material or physical form; real or solid; not abstract. The dictionary has been written in the Aristotelian era. That will not work if we are machine. In that case a better definition might be on the line of: Concrete: a precise natural number Abstract: anything else. Bruno 8/18/2012 Leibniz would say, "If there's no God, we'd have to invent him so everything could function." ----- Receiving the following content ----- From: meekerdb Receiver: everything-list Time: 2012-08-17, 14:38:08 Subject: Re: The difference betrween abstract and concrete On 8/17/2012 8:30 AM, Roger wrote: Hi Jason Resch One -- especially a computer -- cannot experience abstractions. One (ie only living entities) can only experience the concrete. Except physics tells us that concrete is mostly empty space and a ray in an enormous Hilbert space. Brent Riddle: What's has four legs, fur, meows and is made of concrete? Answer: A cat. I just threw in the concrete to make it hard. ab穝tract adjective 1. thought of apart from concrete realities, specific objects, or actual instances: an abstract idea. Roger , [email protected] 8/17/2012 Leibniz would say, "If there's no God, we'd have to invent him so everything could function." -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en. http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.
