Question

Find a collection Ano, (different from the one on the book) where An is countable for every n and such that 0(14) (04) # n=0 krn / n=0 krn Reflect on the meaning of the two sets (for each set write down a short sentence describing the elements that belong to it). (Warning: writing down the sets is not enough, you need to show that they satisfy the above relation).

Answer 1

You com construct a set s An by defining it as folloigs 2-1} if n is ever A = 5 Z his if n s odd.

then Ű (Man)- Ü (11.0LY) 05 Opasno=0 Á (m) = (tuotas) no le=n = n (2-18) p=xo Tence ů (& An)= 0+ 34,74 = 0 / An). n=0 can ? A