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 is a simple Lisp interpreter  that  implements  most  of  the  common  Lisp
 constructs.   It may be useful for learning the basis of the Lisp language.
 The options are as follows: Be more verbose.  Print version information  on
 standard  output  then  exit.   Provide  warnings about constructs that are
 dubious or may be illegal in  other  Lisp  implementations.   The  built-in
 functions  are  summarized  below: Return the sum of the arguments.  Negate
 number or subtract numbers; With one argument, negates it.  With more  than
 one  arguments,  subtracts  all  but  the first from the first.  Return the
 product of the arguments.   Returns  first  argument  divided  by  all  the
 remaining arguments.  Returns remainder (modulus) of divided by Return T if
 first argument is less than second argument.  Return T if first argument is
 less  then  or  equal  to  second  argument.  Return T if first argument is
 greater than second argument.  Return T if first argument is  greater  then
 or  equal  to  second  argument.   Return T if the two arguments are equal.
 Eval the arguments until one of them yields  nil,  then  return  nil.   The
 remaining  arguments  are  not  evalled at all.  If no argument yields nil,
 return the last argument's value.  Eval the arguments  until  one  of  them
 yields  non-nil,  then  return  that value. The remaining arguments are not
 evalled at all.  If all arguments return nil, return nil.  Return T if  the
 argument  is  nil.   Return  T  if  the  argument  is not a cons cell. This
 includes nil.  Return the car of  If  the  argument  is  nil,  return  nil.
 Return  the  cdr of If the argument is nil, return nil.  If yields non-nil,
 do else do Returns the value of or the value of the last If yields nil,  do
 else  return  nil.   If yields non-nil, do else return nil.  If yields non-
 nil, eval and repeat.  The order of execution  is  thus  and  so  on  until
 returns  nil.  Eval and sequentially; return the value from The value of is
 saved during the evaluation of the remaining arguments,  whose  values  are
 discarded.   Eval  and  sequentially; return the value from The value of is
 saved during the evaluation of the remaining arguments,  whose  values  are
 discarded.  Eval forms sequentially and return value of last one.  Try each
 clause until one succeeds.  Each clause  looks  like  (cond  body...).   is
 evaluated  and,  if  the  value  is non-nil, this clause succeeds; then the
 expressions in are evaluated and the last one's value is the value  of  the
 cond-form.   If  no clause succeeds, cond returns nil.  If a clause has one
 element, as in (cond), the value if non-nil is returned from the cond-form.
 Create  a  new cons, give it and as components, and return it.  Define as a
 function.  Return T  if  the  two  arguments  are  the  same  Lisp  object.
 Evaluate  and return its value.  Reclaim storage for Lisp objects no longer
 needed.  is a synonymous of Return a  newly  created  list  with  specified
 arguments  as  elements.  Any number of arguments, even zero arguments, are
 allowed.   Return  T  if  the  argument  is  nil.    Output   the   printed
 representation  of  the arguments.  Return the argument, without evaluating
 it.  Set the value to and return Set each to the value of its  The  symbols
 are   variables;   they  are  literal  (not  evaluated).   The  values  are
 expressions; they are evaluated.  The second is not  computed  until  after
 the  first  is  set, and so on; each can use the new value of variables set
 earlier in the The return value of the form is the value of the last  is  a
 synonymous  of Dump the set variables to the specified file.  Sandro Sigala
 (ssigala@globalnet.it)