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A1 Prop Ch1-3

NameSymbols
Commutative (Addition) a + b = b + a
Commutative (Multiplication) ab = ba
Associative (Addition) (a + b) + c = a + (b + c)
Associative (Multiplication) (ab)c = a(bc)
Identity (Addition) a + 0 = a
Identity (Multiplication) a x 1 = a
Zero Product a x 0 = 0
Inverse (Addition) a + (-a) = 0
Inverse (Multiplication) a • 1/a = 1
Transitive If a = b and b = c, then a = c
Addition Property of Equality If a = b, then a + c = b + c.
Multiplication Property of Equality If a = b, then ac = bc.
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