Definition:Countably Infinite/Also known as
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When the terms denumerable and enumerable are encountered, they generally mean the same as countably infinite.
Sometimes the term enumerably infinite can be seen.
Some modern pedagogues (for example Vi Hart and James Grime) use the term listable, but this has yet to catch on.
- 1989: George S. Boolos and Richard C. Jeffrey: Computability and Logic (3rd ed.) ... (previous) ... (next): $1$ Enumerability
- 2010: Raymond M. Smullyan and Melvin Fitting: Set Theory and the Continuum Problem (revised ed.) ... (previous) ... (next): Chapter $1$: General Background: $\S 2$ Countable or uncountable?