fix grammar

Author: coke

doc/Language/functions.pod6

@@ -212,7 +212,7 @@ Attempting to return values of another type will cause a compilation error.
 =for code
 sub foo() returns Int { "a"; }; foo; # Type check fails
 
-C<returns> and C<of> are equivalent, and both take only a Type since they are declaring a trait of the L<Callable>. The last declaration is, in fact, a type declaration, which obviously can take only a type. C«-->», however, can take either undefinite or definite values.
+C<returns> and C<of> are equivalent, and both take only a Type since they are declaring a trait of the L<Callable>. The last declaration is, in fact, a type declaration, which obviously can take only a type. C«-->», however, can take either undefined or definite values.
 
 Note that C<Nil> and C<Failure> are exempt from return type constraints and
 can be returned from any routine, regardless of its constraint:

doc/Type/Any.pod6

@@ -200,7 +200,7 @@ You can square anything as long as it behaves like a number. In this case, there
 
 3-item lists are not C<Rat>, so it descends recursively, but eventually only applies the operation to those that walk (or slither, as the case may be) like a C<Rat>.
 
-Although on the surface (and name), C<duckmap> might look similar to L<C<deepmap>|/routine/deepmap>, the latter is applied recursively inconditionally of the type of the item.
+Although on the surface (and name), C<duckmap> might look similar to L<C<deepmap>|/routine/deepmap>, the latter is applied recursively regardless of the type of the item.
 
 =head2 method nodemap