EDB — 27Z

Exercises

1. [27Z]Prerequisites:[281]↺↻.Show that multiplication is associative. Hint prove by induction in \(h\)

   \[ ∀ m,n,h ∈ ℕ, (m× n)× h =m× (n× h)\quad . \]
   Solution 1

   [28X]↺↻