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Proof of eight properties of five inequalities required in the mathematics of summing up senior one ~ ~ ~
Used as a method to prove differences.

Proof that a<b and C belong to real numbers a+c < b+c

The proof is as follows: (a+c)-(b+c) = a-b.

Because of a man

So (a+c)-(b+c)

That is the proof that a+c < b+c.

The rest can be proved in the same way.