Question: Let [n] = {1, 2, . . . ,n}. Suppose A1, . . . ,Am are sets such that UA, = [n], each |A,| has

 Let [n] = {1, 2, . . . ,n}. Suppose A1,

Let [n] = {1, 2, . . . ,n}. Suppose A1, . . . ,Am are sets such that UA, = [n], each |A,| has even size and each intersection A,- D A,- has even size. In this problem we will prove that m S 2L3]. Let IF = {0,1} be the eld of two elements and V = IF\". Let 61, . . . ,6\" be the standard basis of V. Dene (,) : V x V > IF as (21,10) = 'vT'w. (i) Which properties of inner product does (,) satisfy, and which ones does it not? Let P([n]) be the power set of [n]. We have a map F : lP'([n]) > V dened as: F(X) = :6 sex (ii) Prove that F is a bijection

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