Menu options:

 a:  Add a pre- or user-defined axiom or rule to the logic.
 
 b:  Specify a formula to fail in the matrices found.
 
 c:  Define a connective.   E.g.  +  defined  ~a -> b.
 
 d:  Delete either an axiom, a user-defined connective or the bad guy.
 
 e:  Exit from MAGIC.
 
 f:  Choose the fragment (pre-defined connectives).
 
 g:  Search for matrices.
 
 h:  Display this page.
 
 i:  Change the output formats.
 
 j:  Set a condition on which to jump out of the search.
 
 k:  Re-initialise everything.
 
 l:  Change your mind about your favourite logic.

 m:  Display information about MaGIC (version number etc).

 n:  Change number of processes (parallel version only).

 o:  Re-order dyadic connectives for scope or significance purposes.

 p:  Select which tables to print when matrices are found.

 q:  Quit MaGIC (equivalent to e).

 r:  Read a job specification from a named file.

 s:  Write the current job specification to a named file.