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| 2025-12-12 15:20:54 +0100 | Square | (~Square4@user/square) Square |
| 2025-12-12 15:08:37 +0100 | euphores | (~SASL_euph@user/euphores) euphores |
| 2025-12-12 15:06:49 +0100 | karenw | (~karenw@user/karenw) karenw |
| 2025-12-12 15:03:54 +0100 | tromp | (~textual@2001:1c00:3487:1b00:dd4:56d:fd02:60e2) |
| 2025-12-12 14:40:57 +0100 | Everything | (~Everythin@172-232-54-192.ip.linodeusercontent.com) (Quit: leaving) |
| 2025-12-12 14:31:33 +0100 | Enrico63 | (~Enrico63@host-95-251-99-143.retail.telecomitalia.it) Enrico63 |
| 2025-12-12 14:29:35 +0100 | stef204 | (~stef204@user/stef204) stef204 |
| 2025-12-12 14:27:31 +0100 | fp | (~Thunderbi@130.233.70.102) fp |
| 2025-12-12 14:24:15 +0100 | trickard | (~trickard@cpe-83-98-47-163.wireline.com.au) |
| 2025-12-12 14:24:02 +0100 | trickard | (~trickard@cpe-83-98-47-163.wireline.com.au) (Read error: Connection reset by peer) |
| 2025-12-12 14:17:41 +0100 | fp | (~Thunderbi@2001:708:150:10::7e06) (Ping timeout: 244 seconds) |
| 2025-12-12 14:12:55 +0100 | fp | (~Thunderbi@2001:708:150:10::7e06) fp |
| 2025-12-12 14:07:05 +0100 | lucabtz_ | lucabtz |
| 2025-12-12 14:06:30 +0100 | <lucabtz_> | though the only foralls which can be implicit are the ones at the top level no? |
| 2025-12-12 14:04:34 +0100 | lucabtz | (~lucabtz@user/lucabtz) (Ping timeout: 246 seconds) |
| 2025-12-12 14:03:39 +0100 | <merijn> | Yes, but then pinning down exactly what that means isn't always obvious in Haskell given that the source language doesn't always match the one with explicit foralls directly |
| 2025-12-12 14:02:24 +0100 | lucabtz_ | (~lucabtz@user/lucabtz) lucabtz |
| 2025-12-12 13:59:13 +0100 | lucabtz | (~lucabtz@user/lucabtz) lucabtz |
| 2025-12-12 13:56:23 +0100 | Googulator50 | (~Googulato@team.broadbit.hu) (Ping timeout: 272 seconds) |
| 2025-12-12 13:55:30 +0100 | lucabtz | (~lucabtz@user/lucabtz) (Quit: leaving) |
| 2025-12-12 13:44:11 +0100 | tromp | (~textual@2001:1c00:3487:1b00:dd4:56d:fd02:60e2) (Quit: My iMac has gone to sleep. ZZZzzz…) |
| 2025-12-12 13:38:55 +0100 | Enrico63 | (~Enrico63@host-95-251-99-143.retail.telecomitalia.it) (Quit: Client closed) |
| 2025-12-12 13:36:47 +0100 | xff0x | (~xff0x@2405:6580:b080:900:d3a9:b169:555e:b9ec) |
| 2025-12-12 13:35:24 +0100 | <lucabtz> | isnt the definition as rank N has as parameters rank N-1 types correct? |
| 2025-12-12 13:35:12 +0100 | lucabtz | (~lucabtz@user/lucabtz) lucabtz |
| 2025-12-12 13:30:17 +0100 | chromoblob | (~chromoblo@user/chromob1ot1c) chromoblob\0 |
| 2025-12-12 13:29:25 +0100 | lucabtz | (~lucabtz@user/lucabtz) (Ping timeout: 264 seconds) |
| 2025-12-12 13:27:35 +0100 | chromoblob | (~chromoblo@user/chromob1ot1c) (Ping timeout: 240 seconds) |
| 2025-12-12 13:24:43 +0100 | Googulator | (~Googulato@team.broadbit.hu) (Ping timeout: 272 seconds) |
| 2025-12-12 13:20:57 +0100 | Googulator50 | (~Googulato@team.broadbit.hu) |
| 2025-12-12 13:16:13 +0100 | Katarushisu | (~Katarushi@finc-20-b2-v4wan-169598-cust1799.vm7.cable.virginm.net) Katarushisu |
| 2025-12-12 13:04:28 +0100 | pabs3 | (~pabs3@user/pabs3) pabs3 |
| 2025-12-12 13:02:46 +0100 | pabs3 | (~pabs3@user/pabs3) (Ping timeout: 244 seconds) |
| 2025-12-12 13:02:19 +0100 | __monty__ | (~toonn@user/toonn) toonn |
| 2025-12-12 13:01:13 +0100 | __monty__ | (~toonn@user/toonn) (Ping timeout: 264 seconds) |
| 2025-12-12 12:34:01 +0100 | <merijn> | Especially since GHC doesn't even distinguish between Rank2 and RankN |
| 2025-12-12 12:33:37 +0100 | <merijn> | In practice the value is understanding "why does this not compile and how can I make it do what I want" :p |
| 2025-12-12 12:33:30 +0100 | Square2 | (~Square@user/square) Square |
| 2025-12-12 12:33:18 +0100 | <merijn> | then again, in practice there's very little value in knowing the exact rank of a type :p |
| 2025-12-12 12:32:58 +0100 | <mauke> | the SO page I found is better, but includes two incompatible answers :-) |
| 2025-12-12 12:32:46 +0100 | <merijn> | sure |
| 2025-12-12 12:32:43 +0100 | pabs3 | (~pabs3@user/pabs3) pabs3 |
| 2025-12-12 12:32:33 +0100 | <mauke> | which is useless if I want to know the actual definition of "rank" |
| 2025-12-12 12:32:20 +0100 | <mauke> | yeah, when I search for "rank-n type", most results are examples like ^ |
| 2025-12-12 12:31:28 +0100 | <merijn> | Enrico63: This is the clearest example of Rank1 vs RankN I cooked up a few years ago: https://gist.github.com/merijn/77e3fa9757658e59b01d |
| 2025-12-12 12:31:19 +0100 | <mauke> | Enrico63: yes, that's a H98 type (by floating out the forall) |
| 2025-12-12 12:30:52 +0100 | <mauke> | this looks much better: https://stackoverflow.com/questions/22362196/what-is-n-in-rankntypes |
| 2025-12-12 12:28:10 +0100 | <Enrico63> | Anyway, going to the exercises I found on the book "Thinking with Types" that I'm reading, `Int -> forall a. a -> a` is rank 1, correct? |
| 2025-12-12 12:26:11 +0100 | <Enrico63> | No? |
| 2025-12-12 12:26:10 +0100 | <Enrico63> | which means that the implementation of foo is choosing a=Int, which could not be the case if foo was rank 1, because the caller would choose a. |