#### MathematicalPhysicist

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basically, i need to show that |Q^N|=c.

here, are a few attempts from my behalf:

i thought that Q^N is a subset of R^N, so |Q^N|<=c, but this doesnt help here, so i thought perhaps to find a bijection from {0,1}^N to Q^N.

i know that each rational number can be represented in base 2 by the digits 0,1, but im having difficulty to formalise this idea.