Question
a) if L1 is recognisable but not decidable, L2 is decidable but not recognisable, then prove L1 U L2 is undecidable? b) if L1 is
a) if L1 is recognisable but not decidable, L2 is decidable but not recognisable, then prove L1 U L2 is undecidable?
b) if L1 is recognisable but not decidable, L2 is recognisable but not decidable, then prove L1 U L2 is undecidable?
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Time Series Databases New Ways To Store And Access Data
Authors: Ted Dunning, Ellen Friedman
1st Edition
1491914726, 978-1491914724
