Question

1+1 = 2. Prove this statement​

Answer 1

Answer:

If c is a member of some cardinal number r, and if a and b are disjoint, then the sum of p and q is r. With this definition, you can prove the usual desirable properties of addition, such as x + 0 = x, x + y = y + x, and 1 + 1 = 2

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