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Derivation of propositional logic for (p ∨ (q ⊃ q))? The exact value of 5.8 million times? Two point five thousand is.? I bought a beautiful antique piano from Germany, I think there is a spirit attached to it, will the ghost be able to learn to speak English? For Reaction VII (CuSO4 + Fe (steel wool)) what is the complete ionic equation? What s a data set containing 5 data values with a mean of 10 and a standard deviation that is not 0?