Photos A X B 2 C

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A x b 2 c. A*(B+C)+D*(B+C) формула. A∩B={X|X∈A…..X∈B}. X = (¬ A) ∧ B + A ∧ (¬ B). #0a1b2c.
A*(B+C)+D*(B+C) формула. A∩B={X|X∈A…..X∈B}. X = (¬ A) ∧ B + A ∧ (¬ B). #0a1b2c.

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