Disjunction Elimination - Proof

Famous quotes containing the word proof:

“Talk shows are proof that conversation is dead.”
—Mason Cooley (b. 1927)

“To cease to admire is a proof of deterioration.”
—Charles Horton Cooley (1864–1929)

“Right and proof are two crutches for everything bent and crooked that limps along.”
—Franz Grillparzer (1791–1872)