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2.1 Logical variables and equations (Re: Clueless Moron and Paid Putin Troll (Was: Arrow Functions can do Existential Quantifier)

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Hi,

Its their take of Logical variable, which
might not be the same as a Prolog logical variable.

------------------ cut here ----------------

2.1 Logical variables and equations
A program executes by solving its equations, using
the process of unification. For example,

∃x y z. x = <y,3>; x= <2,z>; y

is solved by unifying x with <y, 3> and with <2, z>;
that in turn unifies <y, 3> with <2, z>, which unifies
y with 2 and z with 3. Finally, 2 is returned as the
result. Note carefully that, as in any declarative
language, logical variables are not mutable; a logical
variable stands for a single, immutable value.

We use "∃" to bring a fresh logical variable into
scope, because we really mean "there exists an x
such that .... "

------------------ cut here ----------------

Of course the above is utter nonsense, written
from somebody who doesn't know what a Prolog logical
variable is, shifting in the same sentence from

the attribution of "immutable" of a variable, to
the attribution of "immutable" of the value
of a variable. This is quite hillarious.

Bye

Mild Shock schrieb:
> Hi,
> 
> Its from this paper:
> 
> The Verse Calculus:a Core Calculus for Functional Logic Programming
> SIMON PEYTON JONES, Epic Games, United Kingdom
> GUY STEELE, Oracle Labs, USA
> https://simon.peytonjones.org/assets/pdfs/verse-March23.pdf
> 
> Don't blame me for what they write.
> But mostlikely your eruption is just from
> a clueless Nazi Retard, namely the paid
> 
> troll you are, getting money from Putin.
> 
> Bye
> 
> Franz Sneijders schrieb:
>> Mild Shock wrote:
>>
>>> We use “∃” to bring a fresh logical variable into scope, because we
>>> really mean “there exists an x such that ···.”
>>
>> idiot, there is no any x over there. And it doesn't need to be a 
>> variable,
>> a constant suffices.
>>
> 

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Re: Arrow Functions can do Existential Quantifier (Re: 😂 "Plog-like" - that should be the official term!) Franz Sneijders <ee@ard.nl> - 2025-11-06 17:44 +0000
  Clueless Moron and Paid Putin Troll (Was: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2025-11-06 22:28 +0100
    2.1 Logical variables and equations (Re: Clueless Moron and Paid Putin Troll (Was: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2025-11-06 22:35 +0100
      Re: 2.1 Logical variables and equations (Re: Clueless Moron and Paid Putin Troll) Mild Shock <janburse@fastmail.fm> - 2025-11-06 22:42 +0100
        Re: 2.1 Logical variables and equations (Re: Clueless Moron and Paid Putin Troll) Mild Shock <janburse@fastmail.fm> - 2025-11-06 22:48 +0100
    Re: Clueless Moron and Paid Putin Troll (Was: Arrow Functions can do Existential Quantifier) Mariano Amelsvoort <aa@viollr.nl> - 2025-11-06 22:15 +0000
      Re: Clueless Moron and Paid Putin Troll (Was: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2025-11-06 23:46 +0100
        What does Type Free mean? (Was: Clueless Moron and Paid Putin Troll) Mild Shock <janburse@fastmail.fm> - 2025-11-06 23:54 +0100
  A noiseless patient Spider is a Pussy Mild Shock <janburse@fastmail.fm> - 2025-11-07 00:03 +0100
    Re: A noiseless patient Spider is a Pussy Jackie Romijnders <jirke@jecjr.nl> - 2025-11-07 00:01 +0000
  2025 Obituary: Skew Confluence (aka “Stews” 😆) (Re: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2025-11-07 01:42 +0100
    The quantifer ∃ is just the Combinator K (Schönfinkels C)? (Re: From Feferman to Peyton Jones, no luck with ∃) Mild Shock <janburse@fastmail.fm> - 2025-11-08 21:27 +0100
      Re: The quantifer ∃ is just the Combinator K (Schönfinkels C)? (Re: From Feferman to Peyton Jones, no luck with ∃) Ross Finlayson <ross.a.finlayson@gmail.com> - 2025-11-08 18:20 -0800
        Horn uses Conditional / Clark uses Biconditional (Was: The quantifer ∃ is just the Combinator K (Schönfinkels C)?) Mild Shock <janburse@fastmail.fm> - 2025-11-09 13:05 +0100
          CET is also needed (Was: Horn uses Conditional / Clark uses Biconditional) Mild Shock <janburse@fastmail.fm> - 2025-11-09 13:08 +0100
            Re: CET is also needed (Was: Horn uses Conditional / Clark uses Biconditional) Ross Finlayson <ross.a.finlayson@gmail.com> - 2025-11-09 08:13 -0800
              You have to check Feferman OST [Paradox Hunting] (Was: CET is also needed) Mild Shock <janburse@fastmail.fm> - 2025-11-09 19:57 +0100
                Prolog semantics is 3-valued or intuitionistic [Feferman prefers partial logic] (Was: You have to check Feferman OST [Paradox Hunting]) Mild Shock <janburse@fastmail.fm> - 2025-11-09 20:11 +0100
                In Prolog you don't need the down arrow t↓ (Was: Prolog semantics is 3-valued or intuitionistic) Mild Shock <janburse@fastmail.fm> - 2025-11-09 20:16 +0100

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