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-rw-r--r-- | folkwisdom.md | 2 |
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diff --git a/folkwisdom.md b/folkwisdom.md index 47c5c036d..e8ac0faa1 100644 --- a/folkwisdom.md +++ b/folkwisdom.md @@ -153,7 +153,7 @@ propositional equality When defining a datatype that has a field of a type that is used with a custom equivalence, it is probably a good idea to define the obvious custom equivalence -relation for the new type right away (and make and `Equivalence` instance for +relation for the new type right away (and make an `Equivalence` instance for the relation and `Proper` instances for constructors and projections. When defining a type parametrized over some other type, and it is likely that some use of the parametric type will be set the parameter to a type with a custom |