(-) precedence

[Albert Chan]

(12-13-2022 03:59 PM)David Hayden Wrote:  If only we used a different symbol to signify that a number is negative, all this confusion would disappear.

This reminds me of Professor W.W. Sawyer's article: Things and Un-things.
The goal is to help children to understand negative numbers. (Does it really work?)

-2 apples = un-2 apples = 2 un-apples

Quote:If an un-thing and a thing meet, they wipe each other out.