Originally Posted by InkUnderNails

I see the "WN" as a variable, like algebra. I say "WIN" as I would say "x" in an algebraic expression. But, my brain automatically substitutes the constant value "Southwest Airlines." Like π is always interpreted as 3.14159 when doing a numerical evaluation even though out loud I might say "Pie." However, if the context is theoretical, as in πrē, then my mind does not evaluate the π as 3.14159, it establishes the relationship between area of a circle, its radius and the constant value of π.

Since nearly all the writing on this forum is from the standpoint of application, I substitute the actual value in my mind, Southwest Airlines. For the theoretical uses such as WN>AA when Standby <>1 and When WN =1 bag fee = 0 AND Elite <> 0 else bag fee ≥ 25, the the simple WN suffices. (Note: when WN = 1 division by bag fee is undefined.)

In non symbolic: Southwest is better than American unless you need to stand by and if on Southwest Airlines the bag fees are $0 and on other is it $25 or more unless one is an elite on the other airline.