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tidy: del unused Eq, add custom Show

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hi 2025-08-12 13:28:58 +00:00
parent 56a8dd2b30
commit 88c140fed5
6 changed files with 32 additions and 11 deletions
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Logic/Language.hs
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@ -7,7 +7,7 @@ instance Show a => Show (ConcatShowList a) where
-- Formal language (/grammar/production system/whatever)
-- https://en.wikipedia.org/wiki/Post_canonical_system
class (Eq symbol, Show symbol) => Language symbol where
class Show symbol => Language symbol where
isWellFormed :: [symbol] -> Bool
-- If Haskell had dependent types these could be generalized.