online

algorithm.tex

@@ -404,7 +404,7 @@ or not).\footnote{%%%
 Of course, there exist languages in which it is
 possible to check whether some value has a type that has functional
 subcomponents---e.g., to test whether an object is of some class
-that possess some given methods, but that is a case of nominal rather than
+that possesses some given methods, but that is a case of nominal rather than
 structural subtyping, which in our framework corresponds to testing
 whether a value has some basic type.
 }%%%rev