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2021-03-23 11:41:45 × frozenErebus quits (~frozenEre@94.128.81.87) (Ping timeout: 256 seconds)
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2021-03-23 11:48:33 × merijn quits (~merijn@83-160-49-249.ip.xs4all.nl) (Ping timeout: 256 seconds)
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2021-03-23 11:49:05 <fuzzypixelz> I understand dminuoso's explanation, however, I fail to see how `fix not :: Bool` would be a type error
2021-03-23 11:49:30 <dminuoso> fuzzypixelz: Will `fix not` terminate?
2021-03-23 11:49:32 <dminuoso> Or rather
2021-03-23 11:49:37 <dminuoso> What's the value of `fix not`?
2021-03-23 11:49:39 <dminuoso> Is it True? False?
2021-03-23 11:50:11 <fuzzypixelz> not it won't terminate because it keeps negating its input forever
2021-03-23 11:50:20 <dminuoso> So is it True or False?
2021-03-23 11:50:20 merijn joins (~merijn@83-160-49-249.ip.xs4all.nl)
2021-03-23 11:50:46 <fuzzypixelz> it's neither?
2021-03-23 11:51:30 <dminuoso> But if the values of `Bool` are only True or False, that's a problem then.
2021-03-23 11:52:19 <fuzzypixelz> oh thank you that's much clearer now
2021-03-23 11:52:33 <ski> L29Ah : not really
2021-03-23 11:53:18 L29Ah sprinkles his code with traceShowId's
2021-03-23 11:53:40 <dminuoso> fuzzypixelz: What we do, is call values that dont terminate (infinite recursion, errors) "bottom", usually denoted _|_, and say that this value _|_ is a member of every type.
2021-03-23 11:54:40 <jacks2> is it just a coincidence that _|_ looks like buttocks? :)
2021-03-23 11:55:05 <ski> any expression could possibly not terminate. we call the "result value" of such an expression "bottom". it's not an actual result, because it doesn't actually terminate, but conceptually, we can think of it as a thing, representing "not defined"
2021-03-23 11:55:07 × glguy quits (x@freenode/staff/haskell.developer.glguy) (Read error: Connection reset by peer)
2021-03-23 11:55:10 <ski> yes
2021-03-23 11:55:28 × merijn quits (~merijn@83-160-49-249.ip.xs4all.nl) (Ping timeout: 245 seconds)
2021-03-23 11:55:28 <dminuoso> Im not sure whether its a coincidence.
2021-03-23 11:56:01 <dminuoso> Perhaps its from lattice theory?
2021-03-23 11:56:14 merijn joins (~merijn@83-160-49-249.ip.xs4all.nl)
2021-03-23 11:56:24 <dminuoso> _|_ could be visually interpreted as like something sitting at the bottom
2021-03-23 11:56:32 <ski> ⌜⊥⌝ is the symbol that the ascii version `_|_' is meant to resemble, that symbol is just an upside-down ⌜⊤⌝, which is a stylized `T', for "top"
2021-03-23 11:56:49 <ski> and yes, the symbol comes from order theory, lattices
2021-03-23 11:56:59 <ski> (via domain theory, and denotational semantics)
2021-03-23 11:57:21 glguy joins (x@freenode/staff/haskell.developer.glguy)
2021-03-23 11:58:44 <ski> @quote denotational semantics
2021-03-23 11:58:45 <lambdabot> No quotes for this person. This mission is too important for me to allow you to jeopardize it.
2021-03-23 11:58:48 <ski> @quote denotational.semantics
2021-03-23 11:58:48 <lambdabot> vincenz says: Binkley: the sex is all in the operational semantics, denotational semantics only deals with love
2021-03-23 11:59:01 raehik joins (~raehik@cpc95906-rdng25-2-0-cust156.15-3.cable.virginm.net)
2021-03-23 11:59:04 <ski> @quote no.comprehensible
2021-03-23 11:59:04 <lambdabot> quicksilver says: C++ templates are a vile obscenity with no theoretical foundation and no comprehensible denotational semantics. Please do not compare them to haskell types or classes again.
2021-03-23 11:59:21 <fuzzy_id> @peanut: Linux
2021-03-23 11:59:21 <lambdabot> Unknown command, try @list
2021-03-23 11:59:47 <dminuoso> ski: Regarding that last bit, do you know the standard compliant non-const constexpr hack, where a constexpr in two subsequent uses evaluates to different expressions?
2021-03-23 11:59:49 <fuzzy_id> @peanut_: Linux
2021-03-23 11:59:50 <lambdabot> Unknown command, try @list
2021-03-23 12:00:18 <dminuoso> ski: C++ [...] is a vile obscenity with no theoretical foundation and no comprehensible denotational semantics. :-)
2021-03-23 12:01:05 ddellacosta joins (~ddellacos@86.106.143.100)
2021-03-23 12:01:41 <merijn> It doesn't even have a well defined grammar :p
2021-03-23 12:01:41 <peanut_> fuzzy_id ctrl+c keeps ghci open for me, strange
2021-03-23 12:01:43 <ski> fuzzy_id : fwiw, it's not IRC custom to adorn nicknames with sigils (like `@'). if you want to address, or refer to, someone, simply mention their nickname. many IRC clients will highlight/alert their user if the nickname is mentioned at the very start of the message (commonly followed by a comma or a colon, and the bulk of the message). not as many, if it's mentioned later. putting a `@' at the front makes
2021-03-23 12:01:49 <ski> it come not at the start
2021-03-23 12:02:10 <ski> dminuoso : haven't seen it, but i'm not that surprised ..
2021-03-23 12:02:13 <peanut_> dminuoso yes
2021-03-23 12:03:01 × cabpa quits (~cabpa@180.190.165.139) (Remote host closed the connection)
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2021-03-23 12:05:16 <fuzzy_id> ski: Yeah, I used to know that. Sorry, bad social networking habits.
2021-03-23 12:05:24 <peanut_> fuzzy_id sending SIGINT to ghc keeps it open for me, can you try "kill -SIGINT $(pidof ghc)"
2021-03-23 12:05:42 <ski> (IRC is social networking)
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2021-03-23 12:06:48 <fuzzy_id> peanut_: Ah yeah, just noticed that it's actually not a ghci thing, but rather something in `stack repl`.
2021-03-23 12:07:27 <peanut_> interesting
2021-03-23 12:07:32 <fuzzy_id> … with docker backend.
2021-03-23 12:08:00 <fuzzy_id> Not sure what that starts.
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