Real Number Ordering is Compatible with Multiplication/Examples/15 x -3 Less than 12 x -3

Examples of Real Number Ordering is Compatible with Multiplication

We have that:

$15 > 12$

so by Real Number Ordering is Compatible with Multiplication:

$15 \times \paren {-3} < 12 \times \paren {-3}$

That is:

$-45 < -36$

Sources

• 1972: Murray R. Spiegel and R.W. Boxer: Theory and Problems of Statistics (SI ed.) ... (previous) ... (next): Chapter $1$: Inequalities