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<interactive>:10:1: error: [GHC-39999]
• No instance for ‘Show a1’ arising from a use of ‘print’
Cannot resolve unknown runtime type ‘a1’
Use :print or :force to determine these types
Relevant bindings include it :: a1 (bound at <interactive>:10:1)
Potentially matching instances:
instance Show Ordering -- Defined in ‘GHC.Show’
instance Show TyCon -- Defined in ‘GHC.Show’
...plus 32 others
...plus 13 instances involving out-of-scope types
(use -fprint-potential-instances to see them all)
• In a stmt of an interactive GHCi command: print it
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