decidable set meaning in Hindi

Examples

1. In general, being recursively enumerable is a weaker condition than being a decidable set.
2. Sahlqvist's definition characterizes a decidable set of modal formulas with first-order correspondents.
3. This means, in particular, the set of tautologies over a fixed finite or countable alphabet is a decidable set.
4. The deductive closures of T * and T are thus equivalent; the proof will show that T * is a decidable set.
5. As with the concept of a decidable set, the definition of a decidable theory or logical system can be given either in terms of " effective methods " or in terms of " computable functions ".
6. MRDP uses the undecidability proof of Turing : " . . . the set of solvable Diophantine equations is an example of a computably enumerable but not decidable set, and the set of unsolvable Diophantine equations is not computably enumerable " ( p . 71 ).
7. Indeed, the proof that a logical system or theory is undecidable will use the formal definition of computability to show that an appropriate set is not a decidable set, and then invoke Church's thesis to show that the theory or logical system is not decidable by any effective method ( Enderton 2001, pp . 206 " ff . " ).