Real Arithmetic
Why
What are addition and multiplication for reals? What are the identity elements?
Definition
We call the operation of forming real sums real addition. We call the operation of forming real products real multiplication.
Results
It is easy to see the following.1
Distributive
For reals $x, y, z \in \Z $, $x \cdot (y +
z) = x\cdot y + x\cdot z$.
- Nonetheless, the full accounts will appear in future editions. ↩︎