Assignment

CLtL2 Reference 

macro CSETQ : (var value &rest var-val-pairs)

Since CSETQ is procedural in SubL, it does not return a value. Otherwise, it behaves just like setq in Common Lisp.

These SubL functions for setting and unsetting symbol properties behave like their Common Lisp counterparts.

function SET : (symbol value)

function MAKUNBOUND : (symbol)

function FMAKUNBOUND : (symbol)

Reference Home Generalized Variables