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prove the following by or conclusion style (using the equivalence p -> (q or r) = (p && ~q) -> r) :let r be a
prove the following by "or conclusion" style (using the equivalence p -> (q or r) = (p && ~q) -> r) :let r be a real number, if r^2-9>0, then r > 0 or r < -3
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To prove the statement If r2 9 0 then r 0 or r 3 using ...
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Calculus
Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon
9th edition
131429248, 978-0131429246
