Documentation for infix ==, infix ⩵ assembled from the following pages:

Language documentation: Operators §

From Operators

(Operators) infix ==, infix ⩵ §

multi sub infix:<==>(AnyAny)
multi sub infix:<==>(Int:DInt:D)
multi sub infix:<==>(Num:DNum:D)
multi sub infix:<==>(Rational:DRational:D)
multi sub infix:<==>(Real:DReal:D)
multi sub infix:<==>(Complex:DComplex:D)
multi sub infix:<==>(Numeric:DNumeric:D)

Numeric equality operator.

Coerces both arguments to Numeric (if necessary); returns True if they are equal.

Since Rakudo version 2021.07, ⩵ is an alias for this operator.