Programming Ruby 3.2 (5th Edition) vB1.0: "of" should be "or" (p.125)

@noelrappin On page 125 of the PDF in the first sentence of the paragraph just before the example that begins with arr = [1, 2, 3, 4, 5, 6], the word “of” should be “or”.

Ruby also allows you to specify ranges that have no beginning of no end.
                                           change to "r" ----> ^