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On 9/13/2024 3:09 AM, Mikko wrote:That was well understood long before there was any Prolog.On 2024-09-13 01:17:15 +0000, olcott said:Not one single being in the universe understood
On 9/12/2024 3:54 AM, Mikko wrote:We know that even if no Prolog fact about that is specified.On 2024-09-11 12:14:53 +0000, olcott said:When a Prolog Fact is specified that cats are animals
On 9/11/2024 2:05 AM, Mikko wrote:X may represent a real world claim that is either true or false butOn 2024-09-10 13:23:39 +0000, olcott said:https://en.wikipedia.org/wiki/Negation_as_failure
They all have negation as failure, the key elementThe not operator of Prolog is not a part of Horn clause system. It is
required to reject self-contradictory expressions.
not the same as the not operator of ordinary logic. Therefore one nust
be careful with its use and interpretation.
You have not defined what you mean with "reject" and how that relates
to the behaviour of Prolog programs.
The failure to prove X from Facts and Rules
means that X is untrue yet not necessarily false.
The failure to prove X or ~X from Facts and Rules
means that X is untrue and unfalse, thus not a
truth bearer.
cannot be determined either way with Prolog rules.
then we can know by Prolog Facts that cats are animals.
that "cats are animals" was anything but pure gibberish
until this was specified.
Prolog is like a 100% empty mind until we tell itIt is not a model of the actual world unless the words are related
some facts it literally knows nothing.
When we tell it "cats are animals" is a fact it knows
literally nothing else.
The entire verbal model of the actual world is built
this same way.
"The Earth is spherical" makes exactly as much senseThe meanings of the words "Earth" and "spherical" come from tradition,
as "dgfjlok ergkoi rti932rm 45 njedfww" until specified
otherwise.
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