The set lp-path command specifies a search path for LP to use when looking
for help, .lp, or .lpfrz files. Its default value is
". ~lp/axioms". A period (.) in the value of lp-path refers to
LP's current working directory. A tilde (~) in the value of
lp-path refers to the user's home directory. An initial directory
~lp refers to the directory in which LP's runtime support was installed;
see the installation instructions, the
command-line options, and the version
command for the location of this directory.