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  2. Common knowledge (logic) - Wikipedia

    en.wikipedia.org/wiki/Common_knowledge_(logic)

    Knowing that everyone knows does make a difference. When the outsider's public announcement (a fact already known to all, unless k=1 then the one person with blue eyes would not know until the announcement) becomes common knowledge, the blue-eyed people on this island eventually deduce their status, and leave.

  3. Math 55 - Wikipedia

    en.wikipedia.org/wiki/Math_55

    Math 55 is a two-semester freshman undergraduate mathematics course at Harvard University founded by Lynn Loomis and Shlomo Sternberg. The official titles of the course are Studies in Algebra and Group Theory (Math 55a) [ 1 ] and Studies in Real and Complex Analysis (Math 55b). [ 2 ]

  4. Sum and Product Puzzle - Wikipedia

    en.wikipedia.org/wiki/Sum_and_Product_Puzzle

    The solution has X and Y as 4 and 13, with P initially knowing the product is 52 and S knowing the sum is 17. Initially P does not know the solution, since 52 = 4 × 13 = 2 × 26. and S knows that P does not know the solution since all the possible sums to 17 within the constraints produce similarly ambiguous products.

  5. Polanyi's paradox - Wikipedia

    en.wikipedia.org/wiki/Polanyi's_paradox

    Professor Michael Polanyi on a hike in England. Polanyi's paradox, named in honour of the British-Hungarian philosopher Michael Polanyi, is the theory that human knowledge of how the world functions and of our own capability are, to a large extent, beyond our explicit understanding.

  6. Decision problem - Wikipedia

    en.wikipedia.org/wiki/Decision_problem

    A function problem consists of a partial function f; the informal "problem" is to compute the values of f on the inputs for which it is defined. Every function problem can be turned into a decision problem; the decision problem is just the graph of the associated function. (The graph of a function f is the set of pairs (x,y) such that f(x) = y ...

  7. Should you avoid living in a 55-plus community? Here are 5 ...

    www.aol.com/finance/avoid-living-55-plus...

    Even if you can afford to live in a 55-plus community, additional fees will have a way of eating into your retirement budget. For example, amenities can total roughly $200 a month, meaning an ...

  8. Definitions of knowledge - Wikipedia

    en.wikipedia.org/wiki/Definitions_of_knowledge

    These difficulties are further exacerbated by the fact that the term "knowledge" has historically been used for a great range of diverse phenomena. These phenomena include theoretical know-that, as in knowing that Paris is in France, practical know-how, as in knowing how to swim, and knowledge by acquaintance, as in personally knowing a celebrity.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!