[SOLVED] Proof Theory for all real numbers
Homework Statement
If a and b are real numbers, we define max {a, b} to be the maximum of a and b or the common value if they are equal.
Prove that for all real numbers d, d1, d2, x, If d = max {d1, d2} and x ≥ d, then x ≥ d1 and x ≥ d2...