5 lines
203 B
Text
5 lines
203 B
Text
variable {α} (op : α → α → α)
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local infixr:60 " ∙ " => op
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example (x y : α) : x ∙ y = y ∙ x := sorry
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infixr:60 " *** " => op -- Error, only local notation can reference section variables
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