This formula is satisfiable because if we set to b to true and a to false, then the whole formula is true. All other assignments make the formula false, but it doesn't change that the formula is satisfiable as long as there is at least one assignment makes the formula true.
I've rounded up the top three TV deals I could find heading into the weekend, with savings up to $1,100. Make note that while only one specific size of each TV is highlighted, most other sizes of each model are also discounted. Just click through to the different sizes on the product pages for more details.
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For a mechanical Alice keyboard with both wireless and wired capabilities, the Periboard 835 is a good pick. The Mac and Windows-compatible board has a solid build, low profile switches, RGB lighting, comfortable tenting and a few extra programmable keys.