- #1
dhillon
- 14
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URGENT HELP PLEASEEEE, a question on set theory
the question is:
Prove that these sets have cardinality aleph-nought:(there is two 2 prove)
(a) {1/(2^k) : k∈ℕ}
(b) {x∈ℤ : x >= -5}
im not sure how to work this out, please help on this, i did ask on a previous thread how to prove cardinality of a statement, thanks for your help guys
Homework Statement
the question is:
Prove that these sets have cardinality aleph-nought:(there is two 2 prove)
(a) {1/(2^k) : k∈ℕ}
(b) {x∈ℤ : x >= -5}
im not sure how to work this out, please help on this, i did ask on a previous thread how to prove cardinality of a statement, thanks for your help guys