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Chapter 2 Vocabulary

AB
postulateprinciples that are accepted as true without proof
negationdenial of a statement
if-then statementif p, then q
converseif q, then p
inverseif ~ p, then ~ q
contrapositiveif ~ q, then ~ p
inductive reasoninglooking at a number of specific examples to reach a conjecture
deductive reasoningusing a rule to make a conclusion
Law of DetachmentIf "if p, then q" is a true conditional and p is true, then q is true
Law of SyllogismIf "if p, then q" and "if q, then r" are true condtionals, then if p then r is true
Reflexive Propertyfor every # a, a = a
Symmetric PropertyFor all #'s a and b, if a = b, then b = a
Transitive PropertyFor all #'s a, b, and c, if a = b and b = c, then a = c
Supplement TheoremIf two angles form a linear pair, then they are supplementary angles.
conjecturean educated guess


Kim Andreassi

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