=

(= <x1> <x2> …) returns #t if the arguments are equal, #f otherwise. Using it on inexact arguments may be unreliable because a small inaccuracy may affect the result.

At least 2 parameters are required.

Example:

[1] (= 1 1)
#t
[2] (= 1 1.0)
#t
[3] (define a 12)
a
[4] (= a 12)
#t
[5]