CHAPTER 12 MAIN CONCEPTS

12.1
Arguments--premises and conclusions
Valid arguments
modus ponens
Know how to make an argument invalid by having a
false premise
modus tollens
denying the antecedent.


12.2
Conjunctions and Disjunctions
Truth tables for Conjunctions and Disjunctions
Negations
DeMorgans Law--show how to prove using truth tables.


12.3
Given a conditional statement, form its converse, inverse,
and its contrapositive and tell if they are true or false.
Truth table proof showing that a conditional statement is
logicially equivalent to its contrapositive.

12.2/12.3 Know how to fill in a truth table

Know how to construct a truth table from scratch


12.4 Indirect proof-- be able to fill in the blanks on an indirect proof
--be able to write and indirect proof.