␈↓ αoTHE LISP70 PATTERN MATCHING SYSTEM␈↓↓␈↓# *␈↓#v ␈↓↓␈↓ αnLawrence G. Tesler**, Horace J. Enea, David C. Smith ␈↓ ∧αDepartment of Computer Science ␈↓ ∧eStanford University ␈↓ ∧hStanford, California