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The following 6 pages are in this category, out of 6 total.
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95:List of unsolved problems in mathematics
37:This list may not reflect recent changes
32:Pages in category "Lists of problems"
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73:List of PSPACE-complete problems
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85:List of undecidable problems
61:List of NP-complete problems
130:
90:Lists of unsolved problems
16:The main article for this
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114:Mathematics-related lists
49:Lists of problems
23:Lists of problems
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108:Category
18:category
20:is
110::
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80:U
68:P
56:N
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