Acad Independent Functions
Table of equality operators

Here is a table showing the results of calling some equality predicates with the same pair of arguments.

x y eq = equal std-equalp std-set-equal-p
'a 'b nil nil nil nil 'error
'a 'a T T T T 'error
2 2 T T T T 'error
2 2.0 nil T nil T 'error
'(a . b) '(a . b) T T T T 'error
"Franz" "Franz" T T T T 'error
"Franz" "franz" nil nil nil T 'error
(cons 'a 'b) (cons 'a 'b) nil nil T T 'error
'(0 0 1) '(0 0 1.001) nil nil nil T nil
'(a b) '(b a) nil nil nil T T