- #1
laminatedevildoll
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I am not sure how to start these proofs.
Prove that there is a bijection between Q and Q x X if
a. X = N
B. X = {0,1,...n-1}
We're learning about cardinality, but I was thinking that I have to show that it's one-to-one and onto.
Prove that there is a bijection between Q and Q x X if
a. X = N
B. X = {0,1,...n-1}
We're learning about cardinality, but I was thinking that I have to show that it's one-to-one and onto.