2026/01/07

2026-01-07 00:00:49 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-07 00:01:56 +0100peterbecich(~Thunderbi@71.84.33.135) peterbecich
2026-01-07 00:04:13 +0100Brumaire(~no@94.140.114.73) Brumaire
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2026-01-07 00:10:45 +0100Sgeo(~Sgeo@user/sgeo) Sgeo
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2026-01-07 00:16:36 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-07 00:19:00 +0100end(~end@user/end/x-0094621) end^
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2026-01-07 00:22:36 +0100humasect(~humasect@dyn-192-249-132-90.nexicom.net) humasect
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2026-01-07 00:32:30 +0100merijn(~merijn@62.45.136.136) merijn
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2026-01-07 00:52:50 +0100 <haskellbridge> <Liamzee> I'm currently trying to solve Rubik's cube on my own (sort of) by using DeepSeek to help me construct a mathematical model, with occasional uses of Haskell. It's interesting how LLM fradulence relates to whether the LLM actually is capable of mathematical maturity, given enough reasoning cycles.
2026-01-07 00:56:41 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-07 00:57:34 +0100 <jreicher> Wow. Flashbacks group theory.
2026-01-07 00:58:08 +0100 <jreicher> https://en.wikipedia.org/wiki/Rubik%27s_Cube_group
2026-01-07 00:58:26 +0100 <EvanR> you can "accidentally" use it successfully by taking whatever it gives you and running your mental mathematical "typechecker" on it
2026-01-07 00:58:46 +0100 <EvanR> or mental "unit test"
2026-01-07 00:59:08 +0100 <EvanR> once it stops being wrong, you can start to prove that it is right
2026-01-07 01:01:13 +0100trickard_trickard
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2026-01-07 03:20:50 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
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2026-01-07 03:40:14 +0100 <haskellbridge> <Liamzee> apparently i have no ability to assess whether DS claiming that there exists a odd move (quarter turn only) sequence that returns an edge piece to its starting location without flipping its colors
2026-01-07 03:40:35 +0100 <haskellbridge> <Liamzee> is hallucination or not
2026-01-07 03:41:25 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 264 seconds)
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2026-01-07 03:46:03 +0100omidmash(~omidmash@user/omidmash) omidmash
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2026-01-07 03:48:05 +0100trickard_trickard
2026-01-07 03:49:40 +0100 <mange> I don't think there is. 3x3 cubes have edge parity, from memory, so I think only even permutations bring them back. (The above linked Wikipedia page says that corners are in Z_3 and edges are in Z_2, which is consistent with my memory.)
2026-01-07 03:52:11 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-07 03:53:04 +0100mange(~mange@user/mange) (Quit: Quittin' time!)
2026-01-07 03:56:48 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 244 seconds)
2026-01-07 04:00:29 +0100 <ncf> "quarter turn only"? quarter turns generate all moves, what do you mean?
2026-01-07 04:03:03 +0100Googulator(~Googulato@2a01-036d-0106-26d0-8c1b-7e0c-a592-043c.pool6.digikabel.hu)
2026-01-07 04:05:43 +0100chromoblob(~chromoblo@user/chromob1ot1c) (Ping timeout: 264 seconds)
2026-01-07 04:06:11 +0100chromoblob(~chromoblo@user/chromob1ot1c) chromoblob\0
2026-01-07 04:07:59 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
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2026-01-07 04:20:02 +0100 <int-e> ncf: disallowing half turns matters if you're concerned with the number of moves you make, or just their parity, because each quarter turn is an odd permutation of the edge pieces and also an odd permutation of the corner pieces
2026-01-07 04:20:59 +0100 <int-e> (when looking at piece positions, not their orientation)
2026-01-07 04:22:37 +0100 <ncf> so an "odd move" is an odd number of quarter turns?
2026-01-07 04:23:07 +0100 <int-e> "odd move sequence"
2026-01-07 04:23:21 +0100 <int-e> it could certainly be phrased better
2026-01-07 04:23:39 +0100 <ncf> oh
2026-01-07 04:23:45 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) merijn
2026-01-07 04:24:02 +0100 <ncf> yeah i totally failed to parse that
2026-01-07 04:24:28 +0100humasect(~humasect@dyn-192-249-132-90.nexicom.net) humasect
2026-01-07 04:26:09 +0100 <ncf> the question has a bit of a trivial answer then: a single quarter move leaves 8 edges alone
2026-01-07 04:29:01 +0100humasect(~humasect@dyn-192-249-132-90.nexicom.net) (Ping timeout: 246 seconds)
2026-01-07 04:29:37 +0100Sgeo(~Sgeo@user/sgeo) Sgeo
2026-01-07 04:29:56 +0100 <ncf> requiring the edge to have moved during the sequence doesn't change anything, because you can always compose with Xⁿ, where X is a move of order n that moves every edge
2026-01-07 04:30:25 +0100merijn(~merijn@host-cl.cgnat-g.v4.dfn.nl) (Ping timeout: 246 seconds)
2026-01-07 04:32:23 +0100 <ncf> if you want *every* quarter turn in the sequence to move the chosen edge, then the answer should be no because every quarter turn flips the edge's orientation
2026-01-07 04:32:38 +0100bitdex(~bitdex@gateway/tor-sasl/bitdex) bitdex