The types of problem discussed in class today (03/05) in a connection to the prelim 1. 1. Show that a given proposition is a tautology. 2. Find a truth assignment satisfying a given prepositional formula. 3. Find a proposition given its proof table. 4. Show that given formulas with quantifiers are not logically equivalent. 5. Elementary relations on sets 6. Operations on matrices, distributivity of matrix multiplication over addition. 7. All logarithms with base >1 have the same order. 8. Solving congruencies: x^2=1(mod 103). 9. Little Fermat Theorem, applications to large powers: 5^2003 (mod 7,11,13). 10. Chinese Remainder Theorem. 11. Proofs by induction.