Question

Name the property. a + b is a real number.*

Answer 1

Answer:

$a + b = b + a \: \forall \: a, \: b \in \: \R \ \\ a \times b = b \times a\: \forall \: a, \: b \in \: \R \\ (a + b) + c = (b + c) + a\: \forall \: a, \: b, \: c, \in \R \\ (a \times b) \times c = (b \times c) \times a \: \forall \: a, \: b, \: c, \in \R \\a+0=0+a=0 \: \forall \: a,\in \: \R \\a +b=c\: \forall \: a, \: b, \: c, \in \R$

Answer 2

Answer:

Closure Property of Addition

Step-by-step explanation: