In Chapter I of his work on the calculus of finite differences [1], Boole defines, for all real
valued function of one real variable f(x), the first difference of f(x) (with respect to the
increment 1) as ∆f(x) = f(x+1)−f(x). He then defines, for all integers n ≥ 2, the n-th
difference by the recursive formula ∆nf(x) = ∆∆n−1f(x). This enables him to prove by
induction (see [1], p. 5, (2)) that, for all positive integers n,
In Chapter I of his work on the calculus of finite differences [1], Boole defines, for all realvalued function of one real variable f(x), the first difference of f(x) (with respect to theincrement 1) as ∆f(x) = f(x+1)−f(x). He then defines, for all integers n ≥ 2, the n-thdifference by the recursive formula ∆nf(x) = ∆∆n−1f(x). This enables him to prove byinduction (see [1], p. 5, (2)) that, for all positive integers n,
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