Question

Give an example for the following axiom from your experience:

• When equals are added to equals then the resultant are equal

Answer 1

It is logically true, as addition of equals will become equals.

For example: $2+3=4+1$ and $1+5=4+2$

The addition of these two equalities will give

$2+3+1+5=4+1+4+2\Rightarrow 11=11$