[Fontinst] errata in oms.etx

[Giuseppe Toscano]

TeXing oms.etx I have found two errors.

Where it  reads

\setslot{wreathproduct}
    \comment{The Wreath product symbol `$\wp$'.}
\endsetslot

should be

\setslot{wreathproduct}
    \comment{The Wreath product symbol `$\wr$'.}
\endsetslot


SInce fontinst redefines \neg, instead of

\setslot{logicalnot}
    \comment{The negation symbol `$\neg$'.}
\endsetslot

(does not work)
one could use \lnot  (see fontmath.ltx):

\setslot{logicalnot}
    \comment{The negation symbol `$\lnot$'.}
\endsetslot