Boole notes that one can rearrange the order of adjectives and nouns without a loss of meaning, normally.

Example: $"$ "rivers that are estuaries," $=$ "estuaries that are rivers,"

He concludes that:

"Now these inverted forms are not simply the fruits of a poetic license. They are the natural expressions of a freedom

sanctioned by the intimate laws of thought"

Which of the following mathematical law is most similar to how adjectives work?

$x-x=0$

$\frac{x}{x}=0$

$xy=yx$