ace test series

Question

Comments

option D

Answer 1

i think ans should be set of all real no because cardinality greater than real no's

Comments

But how can we enumerate set of all C programs

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c programming is based on CSL so its surely re.

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if a set is uncountable that means it is recursively enumerable ?

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REL are countable

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If a set is countable then it is RE ,set of all turing machines are countable i.e RE set

So option d is correct which is not RE or uncountable

Option c is write because set of all c programs are countable ,means if u start from writing ur first program then u can keep track of it which is the definition of countablity ....