Commit 7b740115 authored by POTTIER Francois's avatar POTTIER Francois

Added a link to a blog post on fixed points of functors.

parent ce874166
......@@ -5,3 +5,11 @@
year = 2017,
URL="https://caml.inria.fr/mantis/view.php?id=7465",
}
@Misc{milewski-13,
author = {Bartosz Milewski},
title = {Understanding {$F$-algebras}},
month = oct,
year = 2013,
URL={https://www.schoolofhaskell.com/user/bartosz/understanding-algebras}
}
......@@ -922,8 +922,8 @@ because the type \oc|oexpr| is parameterized over the type variable
A closed (recursive) type of expressions, \oc|expr|, can then be defined in
terms of \oc|expr|. This is done in \fref{fig:expr13}. In type-theoretical
terms, one would like to define \oc|expr| as the fixed point of the functor
\oc|oexpr|.
% TEMPORARY citation; demander à Pierre-Évariste
\oc|oexpr|~\cite{milewski-13}.
%
That is, roughly speaking, one would like to define \oc|type expr = expr oexpr|.
This is not accepted by OCaml, though;%
%
......
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