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Таблица истинности ONLINE
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Таблица истинности для функции (X∨¬Y)∧¬(E≡Z)∧E:
Промежуточные таблицы истинности:¬Y: X∨(¬Y): | X | Y | ¬Y | X∨(¬Y) | | 0 | 0 | 1 | 1 | | 0 | 1 | 0 | 0 | | 1 | 0 | 1 | 1 | | 1 | 1 | 0 | 1 |
E≡Z: ¬(E≡Z): | E | Z | E≡Z | ¬(E≡Z) | | 0 | 0 | 1 | 0 | | 0 | 1 | 0 | 1 | | 1 | 0 | 0 | 1 | | 1 | 1 | 1 | 0 |
(X∨(¬Y))∧(¬(E≡Z)): | X | Y | E | Z | ¬Y | X∨(¬Y) | E≡Z | ¬(E≡Z) | (X∨(¬Y))∧(¬(E≡Z)) | | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 |
((X∨(¬Y))∧(¬(E≡Z)))∧E: | X | Y | E | Z | ¬Y | X∨(¬Y) | E≡Z | ¬(E≡Z) | (X∨(¬Y))∧(¬(E≡Z)) | ((X∨(¬Y))∧(¬(E≡Z)))∧E | | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
Общая таблица истинности:| X | Y | E | Z | ¬Y | X∨(¬Y) | E≡Z | ¬(E≡Z) | (X∨(¬Y))∧(¬(E≡Z)) | (X∨¬Y)∧¬(E≡Z)∧E | | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
Совершенная дизъюнктивная нормальная форма (СДНФ):
По таблице истинности: | X | Y | E | Z | F | | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 0 | | 0 | 0 | 1 | 0 | 1 | | 0 | 0 | 1 | 1 | 0 | | 0 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | | 0 | 1 | 1 | 0 | 0 | | 0 | 1 | 1 | 1 | 0 | | 1 | 0 | 0 | 0 | 0 | | 1 | 0 | 0 | 1 | 0 | | 1 | 0 | 1 | 0 | 1 | | 1 | 0 | 1 | 1 | 0 | | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | | 1 | 1 | 1 | 0 | 1 | | 1 | 1 | 1 | 1 | 0 |
F сднф = ¬X∧¬Y∧E∧¬Z ∨ X∧¬Y∧E∧¬Z ∨ X∧Y∧E∧¬Z Логическая cхема:
Совершенная конъюнктивная нормальная форма (СКНФ):
По таблице истинности: | X | Y | E | Z | F | | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 0 | | 0 | 0 | 1 | 0 | 1 | | 0 | 0 | 1 | 1 | 0 | | 0 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | | 0 | 1 | 1 | 0 | 0 | | 0 | 1 | 1 | 1 | 0 | | 1 | 0 | 0 | 0 | 0 | | 1 | 0 | 0 | 1 | 0 | | 1 | 0 | 1 | 0 | 1 | | 1 | 0 | 1 | 1 | 0 | | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | | 1 | 1 | 1 | 0 | 1 | | 1 | 1 | 1 | 1 | 0 |
F скнф = (X∨Y∨E∨Z) ∧ (X∨Y∨E∨¬Z) ∧ (X∨Y∨¬E∨¬Z) ∧ (X∨¬Y∨E∨Z) ∧ (X∨¬Y∨E∨¬Z) ∧ (X∨¬Y∨¬E∨Z) ∧ (X∨¬Y∨¬E∨¬Z) ∧ (¬X∨Y∨E∨Z) ∧ (¬X∨Y∨E∨¬Z) ∧ (¬X∨Y∨¬E∨¬Z) ∧ (¬X∨¬Y∨E∨Z) ∧ (¬X∨¬Y∨E∨¬Z) ∧ (¬X∨¬Y∨¬E∨¬Z) Логическая cхема:
Построение полинома Жегалкина:
По таблице истинности функции | X | Y | E | Z | Fж | | 0 | 0 | 0 | 0 | 0 | | 0 | 0 | 0 | 1 | 0 | | 0 | 0 | 1 | 0 | 1 | | 0 | 0 | 1 | 1 | 0 | | 0 | 1 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | 0 | | 0 | 1 | 1 | 0 | 0 | | 0 | 1 | 1 | 1 | 0 | | 1 | 0 | 0 | 0 | 0 | | 1 | 0 | 0 | 1 | 0 | | 1 | 0 | 1 | 0 | 1 | | 1 | 0 | 1 | 1 | 0 | | 1 | 1 | 0 | 0 | 0 | | 1 | 1 | 0 | 1 | 0 | | 1 | 1 | 1 | 0 | 1 | | 1 | 1 | 1 | 1 | 0 |
Построим полином Жегалкина: F ж = C 0000 ⊕ C 1000∧X ⊕ C 0100∧Y ⊕ C 0010∧E ⊕ C 0001∧Z ⊕ C 1100∧X∧Y ⊕ C 1010∧X∧E ⊕ C 1001∧X∧Z ⊕ C 0110∧Y∧E ⊕ C 0101∧Y∧Z ⊕ C 0011∧E∧Z ⊕ C 1110∧X∧Y∧E ⊕ C 1101∧X∧Y∧Z ⊕ C 1011∧X∧E∧Z ⊕ C 0111∧Y∧E∧Z ⊕ C 1111∧X∧Y∧E∧Z Так как F ж(0000) = 0, то С 0000 = 0. Далее подставляем все остальные наборы в порядке возрастания числа единиц, подставляя вновь полученные значения в следующие формулы: F ж(1000) = С 0000 ⊕ С 1000 = 0 => С 1000 = 0 ⊕ 0 = 0 F ж(0100) = С 0000 ⊕ С 0100 = 0 => С 0100 = 0 ⊕ 0 = 0 F ж(0010) = С 0000 ⊕ С 0010 = 1 => С 0010 = 0 ⊕ 1 = 1 F ж(0001) = С 0000 ⊕ С 0001 = 0 => С 0001 = 0 ⊕ 0 = 0 F ж(1100) = С 0000 ⊕ С 1000 ⊕ С 0100 ⊕ С 1100 = 0 => С 1100 = 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0 F ж(1010) = С 0000 ⊕ С 1000 ⊕ С 0010 ⊕ С 1010 = 1 => С 1010 = 0 ⊕ 0 ⊕ 1 ⊕ 1 = 0 F ж(1001) = С 0000 ⊕ С 1000 ⊕ С 0001 ⊕ С 1001 = 0 => С 1001 = 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0 F ж(0110) = С 0000 ⊕ С 0100 ⊕ С 0010 ⊕ С 0110 = 0 => С 0110 = 0 ⊕ 0 ⊕ 1 ⊕ 0 = 1 F ж(0101) = С 0000 ⊕ С 0100 ⊕ С 0001 ⊕ С 0101 = 0 => С 0101 = 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0 F ж(0011) = С 0000 ⊕ С 0010 ⊕ С 0001 ⊕ С 0011 = 0 => С 0011 = 0 ⊕ 1 ⊕ 0 ⊕ 0 = 1 F ж(1110) = С 0000 ⊕ С 1000 ⊕ С 0100 ⊕ С 0010 ⊕ С 1100 ⊕ С 1010 ⊕ С 0110 ⊕ С 1110 = 1 => С 1110 = 0 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 1 = 1 F ж(1101) = С 0000 ⊕ С 1000 ⊕ С 0100 ⊕ С 0001 ⊕ С 1100 ⊕ С 1001 ⊕ С 0101 ⊕ С 1101 = 0 => С 1101 = 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0 F ж(1011) = С 0000 ⊕ С 1000 ⊕ С 0010 ⊕ С 0001 ⊕ С 1010 ⊕ С 1001 ⊕ С 0011 ⊕ С 1011 = 0 => С 1011 = 0 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 0 = 0 F ж(0111) = С 0000 ⊕ С 0100 ⊕ С 0010 ⊕ С 0001 ⊕ С 0110 ⊕ С 0101 ⊕ С 0011 ⊕ С 0111 = 0 => С 0111 = 0 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 1 ⊕ 0 = 1 F ж(1111) = С 0000 ⊕ С 1000 ⊕ С 0100 ⊕ С 0010 ⊕ С 0001 ⊕ С 1100 ⊕ С 1010 ⊕ С 1001 ⊕ С 0110 ⊕ С 0101 ⊕ С 0011 ⊕ С 1110 ⊕ С 1101 ⊕ С 1011 ⊕ С 0111 ⊕ С 1111 = 0 => С 1111 = 0 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 0 ⊕ 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 0 = 1 Таким образом, полином Жегалкина будет равен: F ж = E ⊕ Y∧E ⊕ E∧Z ⊕ X∧Y∧E ⊕ Y∧E∧Z ⊕ X∧Y∧E∧Z Логическая схема, соответствующая полиному Жегалкина:
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