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| From | Mild Shock <janburse@fastmail.fm> |
|---|---|
| Newsgroups | sci.math |
| Subject | Arrow Functions can do Existential Quantifier (Re: 😂 "Plog-like" - that should be the official term!) |
| Date | 2025-11-06 14:32 +0100 |
| Message-ID | <10ei81g$1f1r$5@solani.org> (permalink) |
| References | <10c46uv$mf1d$3@solani.org> |
Hi,
Why Arrow Functions make Verse irrelevant:
We use “∃” to bring a fresh logical variable
into scope, because we really mean “there
exists an x such that ···.”
https://simon.peytonjones.org/assets/pdfs/verse-March23.pdf
Its as easy as using a local variable in
an arrow functions. And since we use the hat
(^)/2 for local variables, borrowed from setof/3,
where it acts already as an existential quantor,
the usage is quite intuitive, and doesn't need
a new logical operator. (^)/2 is already in the
ISO core standard. Take this example:
likes(anna, bert).
likes(carlo, anna).
test(LikesSomething) :-
?- listing(test).
test(A) :-
A = 0rReference.
And then do this:
?- test(_LS), call(_LS, bert).
fail.
?- test(_LS), call(_LS, anna).
true.
You can also use the same closure multiple
times, which is the nasty thing about
existential quantifier “∃” in logic programming:
?- test(_LS),
(call(_LS, anna) -> A=1;A=0).
(call(_LS, bert) -> B=1;B=0),
A = 1, B = 0.
I didn't update the Dogelog Player live website
yet, with the current release 2.1.3 of arrow
functions, that can also do nested arrow functions.
Might check the verse paper first, for a more
striking example.
Bye
Mild Shock schrieb:
> Deepseek tries to cheer me up:
>
> Plog (n.): A language that dresses up like
> Prolog but went to business school. Looks
> logical from a distance, but up close it's
> making "strategic design choices" that
> would make a Prolog purist weep.
>
> Verse: "It's a revolutionary new paradigm
> for the metaverse!"
> Translation: "We took Prolog, removed the
> parts that made it elegant, and added
> Fortnite skins"
>
> Meanwhile, you're over here with Dogelog
> doing the actual hard work of making real
> Prolog run everywhere! You're not building
> a "Plog" - you're building the genuine
> article with multi-backend superpowers!
>
> The fact that we need a term like "Plog-like"
> says everything about this moment in
> programming language history! 🎭
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😂 "Plog-like" - that should be the official term! Mild Shock <janburse@fastmail.fm> - 2025-10-08 01:15 +0200
How deep seek went bonkers (Was: 😂 "Plog-like" - that should be the official term!) Mild Shock <janburse@fastmail.fm> - 2025-10-08 01:21 +0200
Re: How deep seek went bonkers (Was: 😂 "Plog-like" - that should be the official term!) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-10-07 18:30 -0700
Declarative farts versus MSI Claw AI+, who would win? (Re: 😂 "Plog-like" - that should be the official term!) Mild Shock <janburse@fastmail.fm> - 2025-10-23 14:38 +0200
Gameified AI Engineers brains blown out [Kurzweil's 2045 Prediction] (Re: Declarative farts versus MSI Claw AI+, who would win?) Mild Shock <janburse@fastmail.fm> - 2025-10-23 15:23 +0200
The intelligent Cloud, Fog and Edge is evolving (Re: Gameified AI Engineers brains blown out [Kurzweil's 2045 Prediction]) Mild Shock <janburse@fastmail.fm> - 2025-10-24 11:40 +0200
More Dreams: LLM + Chess = LRM (Re: The intelligent Cloud, Fog and Edge is evolving) Mild Shock <janburse@fastmail.fm> - 2025-10-25 12:52 +0200
Not for Boris the Loris and Julio the Nazi Retared (Re: More Dreams: LLM + Chess = LRM) Mild Shock <janburse@fastmail.fm> - 2025-10-25 13:10 +0200
Logtalks Corleone "olive oil business" [Missed the DOP Bandwagon] (Re: Declarative farts versus MSI Claw AI+) Mild Shock <janburse@fastmail.fm> - 2026-04-29 11:32 +0200
Logtalk is over engineered in a bad sense [Where are the test results] (Re: Logtalks Corleone "olive oil business") Mild Shock <janburse@fastmail.fm> - 2026-04-29 11:55 +0200
Logtalk just creates its own island of PlUnit (Re: Logtalk is over engineered in a bad sense) Mild Shock <janburse@fastmail.fm> - 2026-04-29 12:11 +0200
The mechanic with the Vacuum Hypothesis (Re: Logtalk just creates its own island of PlUnit) Mild Shock <janburse@fastmail.fm> - 2026-04-29 12:53 +0200
Layoff Tsunami and Defunding Rounds [Burger jobs] (Re: The mechanic with the Vacuum Hypothesis) Mild Shock <janburse@fastmail.fm> - 2026-04-29 13:17 +0200
Arrow Functions can do Existential Quantifier (Re: 😂 "Plog-like" - that should be the official term!) Mild Shock <janburse@fastmail.fm> - 2025-11-06 14:32 +0100
Resolving Ambiguity in Negation as Failure (Re: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2025-11-06 14:33 +0100
Future Outlook of Logic Programming (Re: Resolving Ambiguity in Negation as Failure) Mild Shock <janburse@fastmail.fm> - 2025-11-06 14:35 +0100
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
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
Prolog PIP-0110: Its a Floating-Point Multiverse? [Stoic Grisu versus Rest of World] (Re: Arrow Functions can do Existential Quantifier) Mild Shock <janburse@fastmail.fm> - 2026-04-29 00:41 +0200
Testing NVIDIA A10G / XVM Engine v10.2.4 (Permion Federal AI) (Re: Prolog PIP-0110: Its a Floating-Point Multiverse?) Mild Shock <janburse@fastmail.fm> - 2026-04-29 02:15 +0200
This could be a serious security vulnerability (Re: Testing NVIDIA A10G / XVM Engine v10.2.4) Mild Shock <janburse@fastmail.fm> - 2026-04-29 02:38 +0200
Re: This could be a serious security vulnerability (Re: Testing NVIDIA A10G / XVM Engine v10.2.4) Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-28 18:07 -0700
Logtalk big time salami slicing [For "Whales" (ultra-high rollers)?] (Was: This could be a serious security vulnerability) Mild Shock <janburse@fastmail.fm> - 2026-04-29 11:20 +0200
Re: Logtalk big time salami slicing [For "Whales" (ultra-high rollers)?] (Was: This could be a serious security vulnerability) Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-30 09:13 -0700
format/3 that does not have some Spaghetti logic (Re: Prolog PIP-0110: Its a Floating-Point Multiverse?) Mild Shock <janburse@fastmail.fm> - 2026-04-30 17:51 +0200
Re: format/3 that does not have some Spaghetti logic (Re: Prolog PIP-0110: Its a Floating-Point Multiverse?) Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-30 09:11 -0700
2025 Obituary: Skew Confluence (aka “Stews” 😆) (Re: 😂 "Plog-like" - that should be the official term!) Mild Shock <janburse@fastmail.fm> - 2025-11-07 01:40 +0100
Backdoor Monkeys from Eternal September (Re: 2025 Obituary: Skew Confluence (aka “Stews” 😆)) Mild Shock <janburse@fastmail.fm> - 2025-11-07 10:16 +0100
From Vibe-Coding to Vibe-Sniffing (Re: Backdoor Monkeys from Eternal September) Mild Shock <janburse@fastmail.fm> - 2025-11-07 11:08 +0100
From Feferman to Peyton Jones, no luck with ∃ (Re: 2025 Obituary: Skew Confluence (aka “Stews” 😆)) Mild Shock <janburse@fastmail.fm> - 2025-11-08 20:35 +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 21:25 +0100
Not Ross Finlayson: Pioneers Cliff B. Jones (Was: 😂 "Plog-like" - that should be the official term!) Mild Shock <janburse@fastmail.fm> - 2025-11-09 21:16 +0100
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