Sujet : Re: How a True(X) predicate can be defined for the set of analytic knowledge
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : sci.logicDate : 20. Mar 2025, 16:02:42
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vrhami$3fbja$2@dont-email.me>
References : 1 2
User-Agent : Mozilla Thunderbird
On 3/20/2025 8:09 AM, Mikko wrote:
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.
Likewise there currently does not exist any finite
proof that the Goldbach Conjecture is true or false
thus True(GC) is a type mismatch error.
When we redefine logic systems such that they begin
with set of basic facts and are only allowed to
apply truth preserving operations to these basic
facts then every element of the system is provable
on the basis of these truth preserving operations.
-- Copyright 2025 Olcott "Talent hits a target no one else can hit; Geniushits a target no one else can see." Arthur Schopenhauer