Recent content by sjung915

That makes sense. Here is what I got, please correct me if I'm wrong. Let p = true q = false r = false then (p ∧ q) → r is true. and (p → r) ∧ (q → r) is false. Hence it's not L.E. Any mistakes?

Homework Statement Show that (p ∧ q) → r and (p → r) ∧ (q → r) are not logically equivalent. Homework Equations a → b = \nega v b The Attempt at a Solution I'm sorry. I'm completely stumped on how to go about this problem. I'm not asking for the solution since I want to know how...

Nevermind I found the answer.. Thank you

Homework Statement Naturally occurring bromine contains two isotopes; Br-79, which has a weight of 78.9183 and Br-81 with a weight of 80.9163. If the atomic weight of Br is 79.904, determine the % abundance of Br-79 and Br-81. Homework Equations To solve this equation I...