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Fixed LaTeX compilation errors.

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Gerd Heber 2018-02-11 18:53:54 -06:00
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examples/pcl/Packages_in_Common_Lisp.org
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@ -1,6 +1,7 @@
#+TITLE: Packages in Common Lisp, a tutorial #+TITLE: Packages in Common Lisp, a tutorial
#+AUTHOR: Francis Sergeraert #+AUTHOR: Francis Sergeraert
#+DATE: January 2014 #+DATE: January 2014
#+OPTIONS: toc:nil
* Introduction. * Introduction.
@ -1843,7 +1844,7 @@
The inherited symbols of a package $p$, denoted by $InhS(p)$, are defined as: The inherited symbols of a package $p$, denoted by $InhS(p)$, are defined as:
$$ $$
InhS(p) := \Big\{ \bigcup_{q\in U(P)}(ExS(q) − ShdS(q,p)) \Big\} − PrS(P) InhS(p) := \Big\{ \bigcup_{q\in U(P)}(ExS(q) - ShdS(q,p)) \Big\} - PrS(P)
$$ $$
A symbol is inherited in a package $p$ if it is external in a /used/ package A symbol is inherited in a package $p$ if it is external in a /used/ package
@ -1851,7 +1852,7 @@
union in the preceding formula is not necessarily disjoint: a symbol can be union in the preceding formula is not necessarily disjoint: a symbol can be
external in several packages simultaneously, and without causing a name external in several packages simultaneously, and without causing a name
conflict. A symbol could be simultaneously present in $p$ and external in a conflict. A symbol could be simultaneously present in $p$ and external in a
package $q$ used by $p$. That is why the the last term, $−PrS(P)$, is package $q$ used by $p$. That is why the the last term, $-PrS(P)$, is
necessary to define unambiguously what an inherited symbol is. necessary to define unambiguously what an inherited symbol is.
Finally the accessible symbols $AccS(p) := PrS(p) \cup InhS(p)$ are the Finally the accessible symbols $AccS(p) := PrS(p) \cup InhS(p)$ are the
@ -2142,7 +2143,7 @@
the new set of accessible symbols via $p$ is: the new set of accessible symbols via $p$ is:
$$ $$
\mathrm{new-}AccS(p) = \mathrm{old-}AccS(p) \cup (ExS(q) − ShdS(q, p)) \mathrm{new-}AccS(p) = \mathrm{old-}AccS(p) \cup (ExS(q) - ShdS(q, p))
$$ $$
** (unuse-package $q$ $p$) ** (unuse-package $q$ $p$)
@ -2303,7 +2304,7 @@
allocated. You see /both/ homeless symbols allocated above are printed in the allocated. You see /both/ homeless symbols allocated above are printed in the
same way, yet they are /different/. same way, yet they are /different/.
* Practical uses of the packaging system. * Practical uses of the packaging system.
Many of the somewhat esoteric technicalities detailed in this tutorial have Many of the somewhat esoteric technicalities detailed in this tutorial have
no direct use in concrete programming. On the other hand, they can help to no direct use in concrete programming. On the other hand, they can help to