Liste des Groupes | Revenir à s logic |
On 4/3/2025 2:08 AM, Mikko wrote:Only when stipulated. More often Cantor's construction or Peano'sOn 2025-04-03 01:30:28 +0000, olcott said:It is a stipulated basic fact.
On 4/2/2025 5:05 PM, Richard Damon wrote:That is generally believed but not actually proven.On 4/2/25 11:59 AM, olcott wrote:It never has been that natural numbers haveOn 4/2/2025 4:20 AM, Mikko wrote:But you can't do that unless you limit the system to only have a finite number of statements expressible in it, and thus it can't handle most real problemsOn 2025-04-01 17:51:29 +0000, olcott said:When we define a system that cannot possibly be inconsistent
All we have to do is make a C program that does thisThere already are programs that check proofs. But you can make your own
with pairs of finite strings then it becomes self-evidently
correct needing no proof.
if you think the logic used by the existing ones is not correct.
If the your logic system is sufficiently weak there may also be a way to
make a C program that can construct the proof or determine that there is
none.
then a proof of consistency not needed.
A system entirely comprised of Basic Facts and Semantic logical entailment cannot possibly be inconsistent.Sure it can.
The problem is you need to be very careful about what you allow as your "Basic Facts", and if you allow the system to create the concept of the Natural Numbers, you can't verify that you don't actually have a contradition in it.
ever actually had any inconsistency themselves
they are essentially nothing more than an orderedThe "nothing more" part cannot be proven.
set of finite strings of digits.
Les messages affichés proviennent d'usenet.