Таблица истинности для функции Y≡X1∧V∧X2∧X3∧V∧X1∧X3:


Промежуточные таблицы истинности:
X1∧V:
X1VX1∧V
000
010
100
111

(X1∧V)∧X2:
X1VX2X1∧V(X1∧V)∧X2
00000
00100
01000
01100
10000
10100
11010
11111

((X1∧V)∧X2)∧X3:
X1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3
0000000
0001000
0010000
0011000
0100000
0101000
0110000
0111000
1000000
1001000
1010000
1011000
1100100
1101100
1110110
1111111

(((X1∧V)∧X2)∧X3)∧V:
X1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3(((X1∧V)∧X2)∧X3)∧V
00000000
00010000
00100000
00110000
01000000
01010000
01100000
01110000
10000000
10010000
10100000
10110000
11001000
11011000
11101100
11111111

((((X1∧V)∧X2)∧X3)∧V)∧X1:
X1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3(((X1∧V)∧X2)∧X3)∧V((((X1∧V)∧X2)∧X3)∧V)∧X1
000000000
000100000
001000000
001100000
010000000
010100000
011000000
011100000
100000000
100100000
101000000
101100000
110010000
110110000
111011000
111111111

(((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3:
X1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3(((X1∧V)∧X2)∧X3)∧V((((X1∧V)∧X2)∧X3)∧V)∧X1(((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3
0000000000
0001000000
0010000000
0011000000
0100000000
0101000000
0110000000
0111000000
1000000000
1001000000
1010000000
1011000000
1100100000
1101100000
1110110000
1111111111

Y≡((((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3):
YX1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3(((X1∧V)∧X2)∧X3)∧V((((X1∧V)∧X2)∧X3)∧V)∧X1(((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3Y≡((((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3)
000000000001
000010000001
000100000001
000110000001
001000000001
001010000001
001100000001
001110000001
010000000001
010010000001
010100000001
010110000001
011001000001
011011000001
011101100001
011111111110
100000000000
100010000000
100100000000
100110000000
101000000000
101010000000
101100000000
101110000000
110000000000
110010000000
110100000000
110110000000
111001000000
111011000000
111101100000
111111111111

Общая таблица истинности:

YX1VX2X3X1∧V(X1∧V)∧X2((X1∧V)∧X2)∧X3(((X1∧V)∧X2)∧X3)∧V((((X1∧V)∧X2)∧X3)∧V)∧X1(((((X1∧V)∧X2)∧X3)∧V)∧X1)∧X3Y≡X1∧V∧X2∧X3∧V∧X1∧X3
000000000001
000010000001
000100000001
000110000001
001000000001
001010000001
001100000001
001110000001
010000000001
010010000001
010100000001
010110000001
011001000001
011011000001
011101100001
011111111110
100000000000
100010000000
100100000000
100110000000
101000000000
101010000000
101100000000
101110000000
110000000000
110010000000
110100000000
110110000000
111001000000
111011000000
111101100000
111111111111

Логическая схема:

Совершенная дизъюнктивная нормальная форма (СДНФ):

По таблице истинности:
YX1VX2X3F
000001
000011
000101
000111
001001
001011
001101
001111
010001
010011
010101
010111
011001
011011
011101
011110
100000
100010
100100
100110
101000
101010
101100
101110
110000
110010
110100
110110
111000
111010
111100
111111
Fсднф = ¬Y∧¬X1∧¬V∧¬X2∧¬X3 ∨ ¬Y∧¬X1∧¬V∧¬X2∧X3 ∨ ¬Y∧¬X1∧¬V∧X2∧¬X3 ∨ ¬Y∧¬X1∧¬V∧X2∧X3 ∨ ¬Y∧¬X1∧V∧¬X2∧¬X3 ∨ ¬Y∧¬X1∧V∧¬X2∧X3 ∨ ¬Y∧¬X1∧V∧X2∧¬X3 ∨ ¬Y∧¬X1∧V∧X2∧X3 ∨ ¬Y∧X1∧¬V∧¬X2∧¬X3 ∨ ¬Y∧X1∧¬V∧¬X2∧X3 ∨ ¬Y∧X1∧¬V∧X2∧¬X3 ∨ ¬Y∧X1∧¬V∧X2∧X3 ∨ ¬Y∧X1∧V∧¬X2∧¬X3 ∨ ¬Y∧X1∧V∧¬X2∧X3 ∨ ¬Y∧X1∧V∧X2∧¬X3 ∨ Y∧X1∧V∧X2∧X3
Логическая cхема:

Совершенная конъюнктивная нормальная форма (СКНФ):

По таблице истинности:
YX1VX2X3F
000001
000011
000101
000111
001001
001011
001101
001111
010001
010011
010101
010111
011001
011011
011101
011110
100000
100010
100100
100110
101000
101010
101100
101110
110000
110010
110100
110110
111000
111010
111100
111111
Fскнф = (Y∨¬X1∨¬V∨¬X2∨¬X3) ∧ (¬Y∨X1∨V∨X2∨X3) ∧ (¬Y∨X1∨V∨X2∨¬X3) ∧ (¬Y∨X1∨V∨¬X2∨X3) ∧ (¬Y∨X1∨V∨¬X2∨¬X3) ∧ (¬Y∨X1∨¬V∨X2∨X3) ∧ (¬Y∨X1∨¬V∨X2∨¬X3) ∧ (¬Y∨X1∨¬V∨¬X2∨X3) ∧ (¬Y∨X1∨¬V∨¬X2∨¬X3) ∧ (¬Y∨¬X1∨V∨X2∨X3) ∧ (¬Y∨¬X1∨V∨X2∨¬X3) ∧ (¬Y∨¬X1∨V∨¬X2∨X3) ∧ (¬Y∨¬X1∨V∨¬X2∨¬X3) ∧ (¬Y∨¬X1∨¬V∨X2∨X3) ∧ (¬Y∨¬X1∨¬V∨X2∨¬X3) ∧ (¬Y∨¬X1∨¬V∨¬X2∨X3)
Логическая cхема:

Построение полинома Жегалкина:

По таблице истинности функции
YX1VX2X3Fж
000001
000011
000101
000111
001001
001011
001101
001111
010001
010011
010101
010111
011001
011011
011101
011110
100000
100010
100100
100110
101000
101010
101100
101110
110000
110010
110100
110110
111000
111010
111100
111111

Построим полином Жегалкина:
Fж = C00000 ⊕ C10000∧Y ⊕ C01000∧X1 ⊕ C00100∧V ⊕ C00010∧X2 ⊕ C00001∧X3 ⊕ C11000∧Y∧X1 ⊕ C10100∧Y∧V ⊕ C10010∧Y∧X2 ⊕ C10001∧Y∧X3 ⊕ C01100∧X1∧V ⊕ C01010∧X1∧X2 ⊕ C01001∧X1∧X3 ⊕ C00110∧V∧X2 ⊕ C00101∧V∧X3 ⊕ C00011∧X2∧X3 ⊕ C11100∧Y∧X1∧V ⊕ C11010∧Y∧X1∧X2 ⊕ C11001∧Y∧X1∧X3 ⊕ C10110∧Y∧V∧X2 ⊕ C10101∧Y∧V∧X3 ⊕ C10011∧Y∧X2∧X3 ⊕ C01110∧X1∧V∧X2 ⊕ C01101∧X1∧V∧X3 ⊕ C01011∧X1∧X2∧X3 ⊕ C00111∧V∧X2∧X3 ⊕ C11110∧Y∧X1∧V∧X2 ⊕ C11101∧Y∧X1∧V∧X3 ⊕ C11011∧Y∧X1∧X2∧X3 ⊕ C10111∧Y∧V∧X2∧X3 ⊕ C01111∧X1∧V∧X2∧X3 ⊕ C11111∧Y∧X1∧V∧X2∧X3

Так как Fж(00000) = 1, то С00000 = 1.

Далее подставляем все остальные наборы в порядке возрастания числа единиц, подставляя вновь полученные значения в следующие формулы:
Fж(10000) = С00000 ⊕ С10000 = 0 => С10000 = 1 ⊕ 0 = 1
Fж(01000) = С00000 ⊕ С01000 = 1 => С01000 = 1 ⊕ 1 = 0
Fж(00100) = С00000 ⊕ С00100 = 1 => С00100 = 1 ⊕ 1 = 0
Fж(00010) = С00000 ⊕ С00010 = 1 => С00010 = 1 ⊕ 1 = 0
Fж(00001) = С00000 ⊕ С00001 = 1 => С00001 = 1 ⊕ 1 = 0
Fж(11000) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С11000 = 0 => С11000 = 1 ⊕ 1 ⊕ 0 ⊕ 0 = 0
Fж(10100) = С00000 ⊕ С10000 ⊕ С00100 ⊕ С10100 = 0 => С10100 = 1 ⊕ 1 ⊕ 0 ⊕ 0 = 0
Fж(10010) = С00000 ⊕ С10000 ⊕ С00010 ⊕ С10010 = 0 => С10010 = 1 ⊕ 1 ⊕ 0 ⊕ 0 = 0
Fж(10001) = С00000 ⊕ С10000 ⊕ С00001 ⊕ С10001 = 0 => С10001 = 1 ⊕ 1 ⊕ 0 ⊕ 0 = 0
Fж(01100) = С00000 ⊕ С01000 ⊕ С00100 ⊕ С01100 = 1 => С01100 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(01010) = С00000 ⊕ С01000 ⊕ С00010 ⊕ С01010 = 1 => С01010 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(01001) = С00000 ⊕ С01000 ⊕ С00001 ⊕ С01001 = 1 => С01001 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(00110) = С00000 ⊕ С00100 ⊕ С00010 ⊕ С00110 = 1 => С00110 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(00101) = С00000 ⊕ С00100 ⊕ С00001 ⊕ С00101 = 1 => С00101 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(00011) = С00000 ⊕ С00010 ⊕ С00001 ⊕ С00011 = 1 => С00011 = 1 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(11100) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00100 ⊕ С11000 ⊕ С10100 ⊕ С01100 ⊕ С11100 = 0 => С11100 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(11010) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00010 ⊕ С11000 ⊕ С10010 ⊕ С01010 ⊕ С11010 = 0 => С11010 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(11001) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00001 ⊕ С11000 ⊕ С10001 ⊕ С01001 ⊕ С11001 = 0 => С11001 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(10110) = С00000 ⊕ С10000 ⊕ С00100 ⊕ С00010 ⊕ С10100 ⊕ С10010 ⊕ С00110 ⊕ С10110 = 0 => С10110 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(10101) = С00000 ⊕ С10000 ⊕ С00100 ⊕ С00001 ⊕ С10100 ⊕ С10001 ⊕ С00101 ⊕ С10101 = 0 => С10101 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(10011) = С00000 ⊕ С10000 ⊕ С00010 ⊕ С00001 ⊕ С10010 ⊕ С10001 ⊕ С00011 ⊕ С10011 = 0 => С10011 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(01110) = С00000 ⊕ С01000 ⊕ С00100 ⊕ С00010 ⊕ С01100 ⊕ С01010 ⊕ С00110 ⊕ С01110 = 1 => С01110 = 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(01101) = С00000 ⊕ С01000 ⊕ С00100 ⊕ С00001 ⊕ С01100 ⊕ С01001 ⊕ С00101 ⊕ С01101 = 1 => С01101 = 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(01011) = С00000 ⊕ С01000 ⊕ С00010 ⊕ С00001 ⊕ С01010 ⊕ С01001 ⊕ С00011 ⊕ С01011 = 1 => С01011 = 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(00111) = С00000 ⊕ С00100 ⊕ С00010 ⊕ С00001 ⊕ С00110 ⊕ С00101 ⊕ С00011 ⊕ С00111 = 1 => С00111 = 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 = 0
Fж(11110) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00100 ⊕ С00010 ⊕ С11000 ⊕ С10100 ⊕ С10010 ⊕ С01100 ⊕ С01010 ⊕ С00110 ⊕ С11100 ⊕ С11010 ⊕ С10110 ⊕ С01110 ⊕ С11110 = 0 => С11110 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(11101) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00100 ⊕ С00001 ⊕ С11000 ⊕ С10100 ⊕ С10001 ⊕ С01100 ⊕ С01001 ⊕ С00101 ⊕ С11100 ⊕ С11001 ⊕ С10101 ⊕ С01101 ⊕ С11101 = 0 => С11101 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(11011) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00010 ⊕ С00001 ⊕ С11000 ⊕ С10010 ⊕ С10001 ⊕ С01010 ⊕ С01001 ⊕ С00011 ⊕ С11010 ⊕ С11001 ⊕ С10011 ⊕ С01011 ⊕ С11011 = 0 => С11011 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(10111) = С00000 ⊕ С10000 ⊕ С00100 ⊕ С00010 ⊕ С00001 ⊕ С10100 ⊕ С10010 ⊕ С10001 ⊕ С00110 ⊕ С00101 ⊕ С00011 ⊕ С10110 ⊕ С10101 ⊕ С10011 ⊕ С00111 ⊕ С10111 = 0 => С10111 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 0
Fж(01111) = С00000 ⊕ С01000 ⊕ С00100 ⊕ С00010 ⊕ С00001 ⊕ С01100 ⊕ С01010 ⊕ С01001 ⊕ С00110 ⊕ С00101 ⊕ С00011 ⊕ С01110 ⊕ С01101 ⊕ С01011 ⊕ С00111 ⊕ С01111 = 0 => С01111 = 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 = 1
Fж(11111) = С00000 ⊕ С10000 ⊕ С01000 ⊕ С00100 ⊕ С00010 ⊕ С00001 ⊕ С11000 ⊕ С10100 ⊕ С10010 ⊕ С10001 ⊕ С01100 ⊕ С01010 ⊕ С01001 ⊕ С00110 ⊕ С00101 ⊕ С00011 ⊕ С11100 ⊕ С11010 ⊕ С11001 ⊕ С10110 ⊕ С10101 ⊕ С10011 ⊕ С01110 ⊕ С01101 ⊕ С01011 ⊕ С00111 ⊕ С11110 ⊕ С11101 ⊕ С11011 ⊕ С10111 ⊕ С01111 ⊕ С11111 = 1 => С11111 = 1 ⊕ 1 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 0 ⊕ 1 ⊕ 1 = 0

Таким образом, полином Жегалкина будет равен:
Fж = 1 ⊕ Y ⊕ X1∧V∧X2∧X3
Логическая схема, соответствующая полиному Жегалкина:

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