(eq? ..args) args: two or more arguments (any type) returns a bool
Returns #t
if all of its arguments are equal to one another.
Each successive pair of arguments is compared in turn. If any of the comparisons are false, the function returns early.

Numbers and characters are compared using
==
. 
Arrays are equal if they have the same length, and each element is equal to the corresponding element in the other array.

Strings are equal if they have the same length and the same characters.

Tables are equal if they have the same set of keys (based on keyequivalence), and if each value is equal to the corresponding value in the other table.

Otherwise, two values are equal if they share the same identity.
This behaviour can be overridden for objects and RData
by defining an opeq?
method.
If (.opeq? a b)
returns #f
or #n
, then a
and b
are not equal.