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Results tagged with soft-question
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user 8800
Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.
19
votes
What is the most useful non-existing object of your field?
The program $H$ which computes the function $$h(P,x)=\begin{cases}
1 & \text{If program $P$ will terminate on input $x$}\\
0 & \text{otherwise}
\end{cases}$$
This function (and the program that compu …