
(DEFPARAMETER |HopfAlgebra;CAT| 'NIL) 

(DECLAIM (NOTINLINE |HopfAlgebra;|)) 

(DEFPARAMETER |HopfAlgebra;AL| 'NIL) 

(DEFUN |HopfAlgebra| (|t#1| |t#2|)
  (LET (#1=#:G2 (#2=#:G3 (LIST (|devaluate| |t#1|) (|devaluate| |t#2|))))
    (COND ((SETQ #1# (|assoc| #2# |HopfAlgebra;AL|)) (CDR #1#))
          (T
           (SETQ |HopfAlgebra;AL|
                   (|cons5| (CONS #2# (SETQ #1# (APPLY #'|HopfAlgebra;| #2#)))
                            |HopfAlgebra;AL|))
           #1#)))) 

(DEFUN |HopfAlgebra;| (|t#1| |t#2|)
  (SPROG ((#1=#:G1 NIL))
         (PROG1
             (LETT #1#
                   (|subst_in_cat| '(|t#1| |t#2|) (LIST |t#1| |t#2|)
                                   (COND (|HopfAlgebra;CAT|)
                                         ('T
                                          (LETT |HopfAlgebra;CAT|
                                                (|Join|
                                                 (|Bialgebra| '|t#1| '|t#2|)
                                                 (|mkCategory|
                                                  '(((|antipode| (% %)) T)) NIL
                                                  NIL NIL)))))))
           (SETELT #1# 0 (LIST '|HopfAlgebra| |t#1| |t#2|))))) 
