Hey all,

I want to prove that:

If p and q are rational numbers then p + q is also a rational number.

I have tried through direct proof:

and where Then,

which is rational.

Is this proof correct ?

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- March 16th 2011, 09:08 PMOilerProof: If p and q are rational numbers then p + q...
Hey all,

I want to prove that:

If p and q are rational numbers then p + q is also a rational number.

I have tried through direct proof:

and where Then,

which is rational.

Is this proof correct ? - March 16th 2011, 09:17 PMpickslides
This is all on the condition that m,n,r,s are integers. You're proof is correct if the following products sn, rm and sm are also integers.