I have to admit that I was expecting this to be about some subtle and often overlooked logic error in writing comparison functions (say assuming that a ≮ b ⇒ a

I have to admit that I was expecting this to be about some subtle and often overlooked logic error in writing comparison functions (say assuming that a ≮ b ⇒ a > b). But this is about what essentially amounts to typographic errors in the code.