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10 TechQA 2025-01-06 15:39:59Haskell typeclass constraint cannot be resolved due to Paterson's conditions
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Asked by madgen
GHC stuck due to UndecidableSuperClasses - expected behaviour or bug?
160 views
Asked by yairchu
Is it able to avoid UndecidableInstances in this example?
144 views
Asked by qimokao
Writing generic Monoid over Cofree; undecidable?
89 views
Asked by Chris Penner
How can undecidable instances actually hang the compiler?
1k views
Asked by leftaroundabout
Example of the undecidability of higher-order unification
77 views
Asked by nikkkk
Transitive 'Subset` class for type-level-sets
218 views
Asked by ShapeOfMatter
Can I automatically produce typeclass instances for a conversion function without being overly permissive?
169 views
Asked by Alexis King
Why does this code using UndecidableInstances compile, then generate a runtime infinite loop?
346 views
Asked by Alexis King
Turing Machine for regular languages
1.6k views
Asked by Mba7eth