Mathematical Economics ---- Fundamental

1) Question. Expand the obversion . (A > -:B) in terms of conjunctives and quanti- ers. 2) Question. Expand the syntactic implication A > B in terms of conjunctives; assume A = F (i.e. vacuous proof) and B = T (i.e. trivial proof) in turns and deduce the syntactic implication's truth values regardless. 3) Question. Demonstrate why A > B 3% B > A = -:A > -:B (i.e. consequent afrmation and antecedent negation)