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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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GPG key ID: 4AEE18F83AFDEB23
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 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 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 instantiated functions at polymorphic types. Thus, it's important that we
actually ensure that we only instantiate in covariant contexts, but it's still actually ensure that we only instantiate in covariant contexts. So, we must
just as problematic if we were to accept instantiated functions at polymorphic ensure that subtyping only instantiates in covariant contexts.
types. 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 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 understand the full scope of the behavior. So, we can look at what happens if we