• Re: Solving the Gettier cases

    From olcott@polcott333@gmail.com to sci.logic,comp.theory,sci.math,sci.math.symbolic on Sun Jun 21 18:47:46 2026
    From Newsgroup: sci.math

    On 6/21/2026 5:37 AM, Mikko wrote:
    On 21/06/2026 03:41, olcott wrote:
    Knowledge is not merely a justified true belief.

    Knowledge is a sufficiently justified true belief such
    that the justification is sufficient reason to conclude
    that the belief is true. Copyright PL Olcott 2026

    The problem is what justification is sufficient to call the conclusion "knowledge". That problem is a consequence to some peoples desire to
    have a word for a concept that is hard to define and hard to use without mistakes.


    When we use the court's "reasonable person"
    standard we know that no reasonable person
    would ever construe number of coins in the
    pocket as having anything at all to do with
    getting the job. (the first Gettier case)

    https://iep.utm.edu/gettier/

    On the other hand the company president's opinion
    about who would be hired might be construed as a
    sufficiently justified belief.
    --
    Copyright 2026 Olcott

    My 28 year goal has been to make
    "true on the basis of meaning expressed in language"
    reliably computable for the entire body of knowledge.
    The complete structure of this system is now defined.

    The entire body of knowledge expressed in language is
    comprised of two types of relations between finite strings:
    (a) *Axioms* Expressions of language that are stipulated to be true.

    My system bridges the analytic/synthetic distinction by
    expressly encoding all empirical "atomic facts" in a formal
    language such as CycL of the Cyc project.

    (b) *Inference Rules* Expressions of language that are semantically
    entailed syntactically from (a) and/or (b).
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Mikko@mikko.levanto@iki.fi to sci.logic,comp.theory,sci.math,sci.math.symbolic on Mon Jun 22 10:30:38 2026
    From Newsgroup: sci.math

    On 22/06/2026 02:47, olcott wrote:
    On 6/21/2026 5:37 AM, Mikko wrote:
    On 21/06/2026 03:41, olcott wrote:
    Knowledge is not merely a justified true belief.

    Knowledge is a sufficiently justified true belief such
    that the justification is sufficient reason to conclude
    that the belief is true. Copyright PL Olcott 2026

    The problem is what justification is sufficient to call the conclusion
    "knowledge". That problem is a consequence to some peoples desire to
    have a word for a concept that is hard to define and hard to use without
    mistakes.

    When we use the court's "reasonable person"
    standard we know that no reasonable person
    would ever construe number of coins in the
    pocket as having anything at all to do with
    getting the job. (the first Gettier case)

    https://iep.utm.edu/gettier/

    On the other hand the company president's opinion
    about who would be hired might be construed as a
    sufficiently justified belief.

    It is hard to construct a rule that simulates a "reasonable person".
    And also hard to test how well some proposed rule achieves that.
    --
    Mikko
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From olcott@polcott333@gmail.com to sci.logic,comp.theory,sci.math,sci.math.symbolic on Mon Jun 22 09:45:46 2026
    From Newsgroup: sci.math

    On 6/22/2026 2:30 AM, Mikko wrote:
    On 22/06/2026 02:47, olcott wrote:
    On 6/21/2026 5:37 AM, Mikko wrote:
    On 21/06/2026 03:41, olcott wrote:
    Knowledge is not merely a justified true belief.

    Knowledge is a sufficiently justified true belief such
    that the justification is sufficient reason to conclude
    that the belief is true. Copyright PL Olcott 2026

    The problem is what justification is sufficient to call the conclusion
    "knowledge". That problem is a consequence to some peoples desire to
    have a word for a concept that is hard to define and hard to use without >>> mistakes.

    When we use the court's "reasonable person"
    standard we know that no reasonable person
    would ever construe number of coins in the
    pocket as having anything at all to do with
    getting the job. (the first Gettier case)

    https://iep.utm.edu/gettier/

    On the other hand the company president's opinion
    about who would be hired might be construed as a
    sufficiently justified belief.

    It is hard to construct a rule that simulates a "reasonable person".
    And also hard to test how well some proposed rule achieves that.


    None-the-less the Gettier cases are conquered.
    --
    Copyright 2026 Olcott

    My 28 year goal has been to make
    "true on the basis of meaning expressed in language"
    reliably computable for the entire body of knowledge.
    The complete structure of this system is now defined.

    The entire body of knowledge expressed in language is
    comprised of two types of relations between finite strings:
    (a) *Axioms* Expressions of language that are stipulated to be true.

    My system bridges the analytic/synthetic distinction by
    expressly encoding all empirical "atomic facts" in a formal
    language such as CycL of the Cyc project.

    (b) *Inference Rules* Expressions of language that are semantically
    entailed syntactically from (a) and/or (b).
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Mikko@mikko.levanto@iki.fi to sci.logic,comp.theory,sci.math,sci.math.symbolic on Tue Jun 23 08:32:22 2026
    From Newsgroup: sci.math

    On 22/06/2026 17:45, olcott wrote:
    On 6/22/2026 2:30 AM, Mikko wrote:
    On 22/06/2026 02:47, olcott wrote:
    On 6/21/2026 5:37 AM, Mikko wrote:
    On 21/06/2026 03:41, olcott wrote:
    Knowledge is not merely a justified true belief.

    Knowledge is a sufficiently justified true belief such
    that the justification is sufficient reason to conclude
    that the belief is true. Copyright PL Olcott 2026

    The problem is what justification is sufficient to call the conclusion >>>> "knowledge". That problem is a consequence to some peoples desire to
    have a word for a concept that is hard to define and hard to use
    without
    mistakes.

    When we use the court's "reasonable person"
    standard we know that no reasonable person
    would ever construe number of coins in the
    pocket as having anything at all to do with
    getting the job. (the first Gettier case)

    https://iep.utm.edu/gettier/

    On the other hand the company president's opinion
    about who would be hired might be construed as a
    sufficiently justified belief.

    It is hard to construct a rule that simulates a "reasonable person".
    And also hard to test how well some proposed rule achieves that.

    None-the-less the Gettier cases are conquered.

    Merely ad hoc solutions, no computable method.
    --
    Mikko
    --- Synchronet 3.22a-Linux NewsLink 1.2