Equation Icon  a a b K b ⇐ ⇒ αab(β ) = β − β (a > b), Eabc ⇐ ⇒ αabc(β) = βa + βb + βc, Ea1⋅⋅⋅a6 ⇐ ⇒ αa1⋅⋅⋅a6(β ) = βa1 + ⋅⋅⋅ + βa6, (9.104 ) Ea |ab1⋅⋅⋅b7 ⇐ ⇒ α (β) = 2βa + βb1 + ⋅⋅⋅ + βb7, a1|a2⋅⋅⋅a9 ab1⋅⋅⋅b7 a1 a9 E ⇐ ⇒ αa1⋅⋅⋅a9(β ) = β + ⋅⋅⋅ + β .