Question

Name the propertis satisfed by natural numbers under addition

Answer 1

1. Closure under addition and multiplication: for all natural numbers a and b, both a + b and a × b are natural numbers.
2. Associativity: for all natural numbers a, b, and c, a + (b + c) = (a + b) + c and a × (b × c) = (a × b) × c.