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Remove duplicate clause caught in rereading

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Aaron Weiss 2022-09-14 10:43:29 -07:00 • committed by GitHub
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1 changed files with 2 additions and 4 deletions
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rfcs/generic-function-subtyping.md
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@ -119,10 +119,8 @@ parameters, it doesn't make sense to warn on their instantiation (as illustrated
by the example of actually applying `f` to some particular data in the
definition of `rank2`), but it's still just as problematic if we were to accept
instantiated functions at polymorphic types. Thus, it's important that we
actually ensure that we only instantiate in covariant contexts, but it's still
just as problematic if we were to accept instantiated functions at polymorphic
types. So, we must ensure that subtyping only instantiates in covariant
contexts.
actually ensure that we only instantiate in covariant contexts. So, we must
ensure that subtyping only instantiates in covariant contexts.
It may also be helpful to consider an example of rank-1 polymorphism to
understand the full scope of the behavior. So, we can look at what happens if we