2024/05/07

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2024-05-07 18:24:35 +0200 <ski> it also has parametric polymorphism, but no dependent types
2024-05-07 18:24:22 +0200 <ski> later add more constructors (or new clauses for a predicate, for that matter)
2024-05-07 18:24:16 +0200 <ski> lambdaProlog has .. more or less, algebraic datatypes (but you don't declare the constructors together with the type, in a single declaration. and you can, later, declare more constructors, if you want to. although, with the module system of Teyjus (a compiler for lambdaProlog, compiling to a bytecode for a WAM-like machine, similar to many Prolog implementations), iirc, you can restrict who (if anyone) can
2024-05-07 18:22:35 +0200darius87(~darius@93.126.130.253) (Quit: Client closed)
2024-05-07 18:21:50 +0200 <lambdabot> Consider it noted.
2024-05-07 18:21:50 +0200 <ski> @tell lortabac well, having locally (lexically/scoped) definitions isn't quite the same thing as what i was talking about in lambdaProlog (although you can also lexically scope some clauses defining a predicate, over (part of) another predicate clause, if you wish to)
2024-05-07 18:21:13 +0200sawilagar(~sawilagar@user/sawilagar) (Ping timeout: 256 seconds)
2024-05-07 18:20:12 +0200 <ski> see <https://www.mercurylang.org/> and #mercury
2024-05-07 18:20:03 +0200sord937(~sord937@gateway/tor-sasl/sord937) (Quit: sord937)
2024-05-07 18:20:00 +0200 <ski> oh, and it's purely declarative, no side-effects (well, it also has an impurity tracking system, but it's mainly used for FFI stuff, before wrapping in a pure interface), it does I/O and mutable data structures through uniqueness (similar to Clean, except that Mercury tracks this in insts (instantiation states), not in types), you thread an I/O state through your I/O interactions
2024-05-07 18:18:09 +0200 <ski> kuribas : for statically typed Prolog, Mercury might be closer, though. it has predicates/relations as well as functions (both can be higher-order), statical types, statical modes (& insts) and determinisms, (parameterizable) algebraic data types, parametric polymorphism, type classes (not higher-order, though), existentials (actual existential quantification, also output type class constraints)
2024-05-07 18:17:19 +0200machinedgod(~machinedg@d173-183-246-216.abhsia.telus.net) (Ping timeout: 268 seconds)
2024-05-07 18:17:15 +0200darius87(~darius@93.126.130.253)
2024-05-07 18:14:53 +0200 <ski> kuribas : you can program in lambdaProlog, it has I/O and stuff. Twelf doesn't have any built-in I/O though, apart from the interactor (though i str seeing some program used to wrap that, feeding the interactor with queries, then parsing the result substitutions and doing something with them)
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2024-05-07 17:27:38 +0200 <kuribas> A statically typed prolog sounds appealing :)
2024-05-07 17:27:21 +0200 <kuribas> Or are they more theorem provers/research languages?
2024-05-07 17:27:09 +0200 <kuribas> Can you program in these languages?
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2024-05-07 17:08:28 +0200danse-nr3(~danse-nr3@151.43.102.160)
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