Commit af6e96dc authored by Giuseppe Castagna's avatar Giuseppe Castagna
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parent ddf58338
......@@ -85,9 +85,9 @@ by skipping the typing of non-selectable branches. They use this
second type system only to prove type preservation and obtain, thus,
the soundness of their type system. In our work, instead, we prefer to
start directly with a system that satisfies type preservation. Our
system does not have the problem the first system of~\cite{THF08}
system does not have the problem of the first system of~\cite{THF08}
thanks to the
presence the \Rule{Efq} rule that we included for that very purpose,
presence of the \Rule{Efq} rule, that we included for that very purpose,
that is, to skip non-selectable branches during typing. The choice of one
or the other approach is mostly a matter of taste and, in this specific case,
boils down to deciding whether some typing problems must be
......@@ -111,7 +111,7 @@ negated arrows, the only purpose of this extension being to prove type preservat
to, not only because we favor type preserving systems, but also
because in this way we were able to characterize different subsystems that
are complete with respect to the algorithmic system, thus exploring
different language design and arguing about the usefulness.
different language designs and arguing about their usefulness.
Another direction of research related to ours is the one of semantic
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