New Cur 17: Natural Selection

A few weeks ago, we posted on a klutzy index law elaboration in the new curriculum:

using examples such as \color{OliveGreen}\boldsymbol{\frac{3^4}{3^4} =1}, and \color{OliveGreen}\boldsymbol{{3^{4-4}}=3^0} to illustrate the necessity that for any non-zero natural number 𝑛, \color{OliveGreen}\boldsymbol{{n^0}=1} (new AC9M8N02)

Some commenters were understandably puzzled by a side point: ACARA’s employment of the expression “non-zero natural number”. In this post, we’ll dispel any lingering lack of puzzlement.

Continue reading “New Cur 17: Natural Selection”