+Undecidability refers to the state of a problem for which no [algorithm](/wiki/algorithm) can ever provide a correct 'yes' or 'no' answer for all possible inputs. Such problems lie beyond the limits of [computability](/wiki/computability), signifying inherent theoretical boundaries to what can be solved systematically.
+## See also
+- [Halting Problem](/wiki/halting_problem)
+- [Gödel's Theorems](/wiki/goedels_theorems)
+- [Decision Problem](/wiki/decision_problem)
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