I need help with #24

22. Using elCT symbolic notation a. If the project is finished soon, then the client will be happy b. If the bills are not paid, then the lights will go out. c. The project will be finished soon only if the lights do not go out. d. If the bills are not paid and the lights go out, then the client will not be happy. e. The bills will be paid if and only if the project is finished soon, or else the lights go out. f. The bills will be paid if and only if either the project is finished soon or the lights go out. 23. Construct truth tables for the following wfs. Note any tautologies or contradictions. 23. Co e. (A- B) [(A VC) (BVC)] b. (AAB)VC AA(BVC) ?.??(A, V B'), Construct truth tables for the following wffs. Note any tautologies or contradictions. a, A (B- A) c. (AV B') ? (? ?, ?), 25. Verify the equivalences in the list on page 9 by constructing truth tables. (We have alread la, 4b, and 5a.) 26. Verify by constructing truth tables that the following wffs are tautologies. Note that the tautologi b, e, f, and g produce equivalences such as (A'), a. AVA A e. (A V B),-> A' / \ B' (De Morgan , 27 Prove the following tautologies by starting with the left side and finding a series of equivalen will convert the left side into the right side. You may use any of the equivalencies in the list n the equivalencies from Exercise 26