[jmilloy]

> P.S. If you have a Bachelors in Mathematics, then surely you can see that there is a fundamental problem if a child is taught that 5x3 is not the same as 3x5?

It's not the same. I'm not sure when that should be taught to a student.

[chris_wot]

It is the same!

[jmilloy]

Right, for different definitions of "same". I think that the OP attempts to explain that there are different definitions of "same" that are each valid.

[chris_wot]

I can't see how!