4 ms·
But, unless you have predefined a language, you can't know which countable set is expressible, so the union of all possible sets may be uncountable.
by lupire 4y ago
But, unless you have predefined a language, you can't know which countable set is expressible, so the union of all possible sets may be uncountable.
- dllthomas 4y agoBut I think all languages is countable, so it should be a subset of the product of two countable sets, which should be countable?