Sujet : Re: How a True(X) predicate can be defined for the set of analytic knowledge
De : mikko.levanto (at) *nospam* iki.fi (Mikko)
Groupes : sci.logicDate : 20. Mar 2025, 14:09:54
Autres entêtes
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Message-ID : <vrh432$39r47$1@dont-email.me>
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On 2025-03-20 02:42:53 +0000, olcott said:
It is stipulated that analytic knowledge is limited to the
set of knowledge that can be expressed using language or
derived by applying truth preserving operations to elements
of this set.
A simple example is the first order group theory.
When we begin with a set of basic facts and all inference
is limited to applying truth preserving operations to
elements of this set then a True(X) predicate cannot possibly
be thwarted.
There is no computable predicate that tells whether a sentence
of the first order group theory can be proven.
-- Mikko