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Code code:"if (foo != bar)"
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Questions about operations on objects of some kind that result in objects of the same kind.

1 vote
1 answer
276 views

is the class NP closed under set difference?

I know P is closed under all Boolean operations, but what about NP? is NP closed under set difference and symmetric difference? is this table accurate? Edit: updated table:
Skynet's user avatar
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1 vote
1 answer
65 views

P NP R RE closures

I wrote the following table for all the closures in those classes. is anything there incorrect? also, would appreciate help with coNP and coRE closures. couldn't find much information about it online. …
Skynet's user avatar
  • 53
1 vote
Accepted

P NP R RE closures

updated table: "?" means it's an open question (unkonwn)
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