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PREP LOGIC

Logic practice

TermDefinition
Disjunction a STATEMENT that is only FALSE when both statements are false.
Disjunction KEY word OR
Conditional Statement a statement that is ONLY false when the antecedent is true and the consequent is false.
Antecedent a statement that comes first in a conditional statement
Consequent a statement that comes last in a conditional statement
Conditional KEY word IF...THEN...
Converse is a conditional statement that has the antecedent and consequent EXCHANGED
Inverse is a conditional statement that has the antecedent and consequent NEGATED
Contrapositive is a conditional statement that has the antecedent and consequent BOTH negated and exchanged
Alternative ways of expressing CONDITIONAL Statements 1) if p, then q 2) p only if q 3) p is a sufficient condition for q 4) q if p 5) q is a necessary condition for p
Logically Equivalent is a relationship that is ONLY valid if two statements have identical truth tables
Statement is a declarative sentence that is either TRUE or FALSE but not both
Negation is a STATEMENT whose truth value is the OPPOSITE of the truth value of a given statement
Negation KEY word NOT
Truth Table is a table that list all the possible truth outcomes of a statement
Conjunction is a STATEMENT that is ONLY true when both statements are true.
Conjunction KEY word AND
Created by: crkelley13
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