https://github.com/davepinch/pinchy.cc/blob/master/content/topics/mathematics/commutative-property/commutative-property.md
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Addition and multiplication are commutative in most number systems, and, in particular, between natural numbers, integers, rational numbers, real numbers and complex numbers.
Commutative property (Wikipedia) In mathematics, a binary operation is commutative if changing the order of the operands does not change the result.