Sr Examen

Expresión (ab!c!d)+(!a!b!c!d)+(abcd)+(a!bc!d)+(!abc!d)

El profesor se sorprenderá mucho al ver tu solución correcta😉

    Solución

    Ha introducido [src]
    (a∧b∧c∧d)∨(a∧b∧(¬c)∧(¬d))∨(a∧c∧(¬b)∧(¬d))∨(b∧c∧(¬a)∧(¬d))∨((¬a)∧(¬b)∧(¬c)∧(¬d))
    (abcd)(ab¬c¬d)(ac¬b¬d)(bc¬a¬d)(¬a¬b¬c¬d)\left(a \wedge b \wedge c \wedge d\right) \vee \left(a \wedge b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right)
    Solución detallada
    (abcd)(ab¬c¬d)(ac¬b¬d)(bc¬a¬d)(¬a¬b¬c¬d)=(a¬d)(b¬d)(c¬d)(ab¬c)(ac¬b)(bc¬a)(d¬a¬b¬c)\left(a \wedge b \wedge c \wedge d\right) \vee \left(a \wedge b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) = \left(a \vee \neg d\right) \wedge \left(b \vee \neg d\right) \wedge \left(c \vee \neg d\right) \wedge \left(a \vee b \vee \neg c\right) \wedge \left(a \vee c \vee \neg b\right) \wedge \left(b \vee c \vee \neg a\right) \wedge \left(d \vee \neg a \vee \neg b \vee \neg c\right)
    Simplificación [src]
    (a¬d)(b¬d)(c¬d)(ab¬c)(ac¬b)(bc¬a)(d¬a¬b¬c)\left(a \vee \neg d\right) \wedge \left(b \vee \neg d\right) \wedge \left(c \vee \neg d\right) \wedge \left(a \vee b \vee \neg c\right) \wedge \left(a \vee c \vee \neg b\right) \wedge \left(b \vee c \vee \neg a\right) \wedge \left(d \vee \neg a \vee \neg b \vee \neg c\right)
    (a∨(¬d))∧(b∨(¬d))∧(c∨(¬d))∧(a∨b∨(¬c))∧(a∨c∨(¬b))∧(b∨c∨(¬a))∧(d∨(¬a)∨(¬b)∨(¬c))
    Tabla de verdad
    +---+---+---+---+--------+
    | a | b | c | d | result |
    +===+===+===+===+========+
    | 0 | 0 | 0 | 0 | 1      |
    +---+---+---+---+--------+
    | 0 | 0 | 0 | 1 | 0      |
    +---+---+---+---+--------+
    | 0 | 0 | 1 | 0 | 0      |
    +---+---+---+---+--------+
    | 0 | 0 | 1 | 1 | 0      |
    +---+---+---+---+--------+
    | 0 | 1 | 0 | 0 | 0      |
    +---+---+---+---+--------+
    | 0 | 1 | 0 | 1 | 0      |
    +---+---+---+---+--------+
    | 0 | 1 | 1 | 0 | 1      |
    +---+---+---+---+--------+
    | 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 | 1      |
    +---+---+---+---+--------+
    | 1 | 1 | 0 | 1 | 0      |
    +---+---+---+---+--------+
    | 1 | 1 | 1 | 0 | 0      |
    +---+---+---+---+--------+
    | 1 | 1 | 1 | 1 | 1      |
    +---+---+---+---+--------+
    FNDP [src]
    (abcd)(ab¬c¬d)(ac¬b¬d)(bc¬a¬d)(¬a¬b¬c¬d)\left(a \wedge b \wedge c \wedge d\right) \vee \left(a \wedge b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right)
    (a∧b∧c∧d)∨(a∧b∧(¬c)∧(¬d))∨(a∧c∧(¬b)∧(¬d))∨(b∧c∧(¬a)∧(¬d))∨((¬a)∧(¬b)∧(¬c)∧(¬d))
    FNC [src]
    Ya está reducido a FNC
    (a¬d)(b¬d)(c¬d)(ab¬c)(ac¬b)(bc¬a)(d¬a¬b¬c)\left(a \vee \neg d\right) \wedge \left(b \vee \neg d\right) \wedge \left(c \vee \neg d\right) \wedge \left(a \vee b \vee \neg c\right) \wedge \left(a \vee c \vee \neg b\right) \wedge \left(b \vee c \vee \neg a\right) \wedge \left(d \vee \neg a \vee \neg b \vee \neg c\right)
    (a∨(¬d))∧(b∨(¬d))∧(c∨(¬d))∧(a∨b∨(¬c))∧(a∨c∨(¬b))∧(b∨c∨(¬a))∧(d∨(¬a)∨(¬b)∨(¬c))
    FNCD [src]
    (a¬d)(b¬d)(c¬d)(ab¬c)(ac¬b)(bc¬a)(d¬a¬b¬c)\left(a \vee \neg d\right) \wedge \left(b \vee \neg d\right) \wedge \left(c \vee \neg d\right) \wedge \left(a \vee b \vee \neg c\right) \wedge \left(a \vee c \vee \neg b\right) \wedge \left(b \vee c \vee \neg a\right) \wedge \left(d \vee \neg a \vee \neg b \vee \neg c\right)
    (a∨(¬d))∧(b∨(¬d))∧(c∨(¬d))∧(a∨b∨(¬c))∧(a∨c∨(¬b))∧(b∨c∨(¬a))∧(d∨(¬a)∨(¬b)∨(¬c))
    FND [src]
    (a¬a¬d)(b¬b¬d)(c¬c¬d)(abcd)(abc¬a)(abc¬b)(abc¬c)(abd¬d)(ab¬a¬d)(ab¬b¬d)(ab¬c¬d)(acd¬d)(ac¬a¬d)(ac¬b¬d)(ac¬c¬d)(ad¬a¬d)(a¬a¬b¬d)(a¬a¬c¬d)(bcd¬d)(bc¬a¬d)(bc¬b¬d)(bc¬c¬d)(bd¬b¬d)(b¬a¬b¬d)(b¬b¬c¬d)(cd¬c¬d)(c¬a¬c¬d)(c¬b¬c¬d)(¬a¬b¬c¬d)(abcd¬a)(abcd¬b)(abcd¬c)(abcd¬d)(abc¬a¬b)(abc¬a¬c)(abc¬a¬d)(abc¬b¬c)(abc¬b¬d)(abc¬c¬d)(abd¬a¬d)(abd¬b¬d)(abd¬c¬d)(ab¬a¬b¬d)(ab¬a¬c¬d)(ab¬b¬c¬d)(acd¬a¬d)(acd¬b¬d)(acd¬c¬d)(ac¬a¬b¬d)(ac¬a¬c¬d)(ac¬b¬c¬d)(ad¬a¬b¬d)(ad¬a¬c¬d)(a¬a¬b¬c¬d)(bcd¬a¬d)(bcd¬b¬d)(bcd¬c¬d)(bc¬a¬b¬d)(bc¬a¬c¬d)(bc¬b¬c¬d)(bd¬a¬b¬d)(bd¬b¬c¬d)(b¬a¬b¬c¬d)(cd¬a¬c¬d)(cd¬b¬c¬d)(c¬a¬b¬c¬d)(d¬a¬b¬c¬d)(abcd¬a¬b)(abcd¬a¬c)(abcd¬a¬d)(abcd¬b¬c)(abcd¬b¬d)(abcd¬c¬d)(abc¬a¬b¬c)(abc¬a¬b¬d)(abc¬a¬c¬d)(abc¬b¬c¬d)(abd¬a¬b¬d)(abd¬a¬c¬d)(abd¬b¬c¬d)(ab¬a¬b¬c¬d)(acd¬a¬b¬d)(acd¬a¬c¬d)(acd¬b¬c¬d)(ac¬a¬b¬c¬d)(ad¬a¬b¬c¬d)(bcd¬a¬b¬d)(bcd¬a¬c¬d)(bcd¬b¬c¬d)(bc¬a¬b¬c¬d)(bd¬a¬b¬c¬d)(cd¬a¬b¬c¬d)(abcd¬a¬b¬c)(abcd¬a¬b¬d)(abcd¬a¬c¬d)(abcd¬b¬c¬d)(abc¬a¬b¬c¬d)(abd¬a¬b¬c¬d)(acd¬a¬b¬c¬d)(bcd¬a¬b¬c¬d)\left(a \wedge \neg a \wedge \neg d\right) \vee \left(b \wedge \neg b \wedge \neg d\right) \vee \left(c \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d\right) \vee \left(a \wedge b \wedge c \wedge \neg a\right) \vee \left(a \wedge b \wedge c \wedge \neg b\right) \vee \left(a \wedge b \wedge c \wedge \neg c\right) \vee \left(a \wedge b \wedge d \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge d \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge d \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg b\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg b\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg b \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg a \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg b\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg b \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg b \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg c\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg a \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge d \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge c \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge b \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(a \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) \vee \left(b \wedge c \wedge d \wedge \neg a \wedge \neg b \wedge \neg c \wedge \neg d\right)
    (a∧b∧c∧d)∨(a∧(¬a)∧(¬d))∨(b∧(¬b)∧(¬d))∨(c∧(¬c)∧(¬d))∨(a∧b∧c∧(¬a))∨(a∧b∧c∧(¬b))∨(a∧b∧c∧(¬c))∨(a∧b∧d∧(¬d))∨(a∧c∧d∧(¬d))∨(b∧c∧d∧(¬d))∨(a∧b∧(¬a)∧(¬d))∨(a∧b∧(¬b)∧(¬d))∨(a∧b∧(¬c)∧(¬d))∨(a∧c∧(¬a)∧(¬d))∨(a∧c∧(¬b)∧(¬d))∨(a∧c∧(¬c)∧(¬d))∨(a∧d∧(¬a)∧(¬d))∨(b∧c∧(¬a)∧(¬d))∨(b∧c∧(¬b)∧(¬d))∨(b∧c∧(¬c)∧(¬d))∨(b∧d∧(¬b)∧(¬d))∨(c∧d∧(¬c)∧(¬d))∨(a∧b∧c∧d∧(¬a))∨(a∧b∧c∧d∧(¬b))∨(a∧b∧c∧d∧(¬c))∨(a∧b∧c∧d∧(¬d))∨(a∧(¬a)∧(¬b)∧(¬d))∨(a∧(¬a)∧(¬c)∧(¬d))∨(b∧(¬a)∧(¬b)∧(¬d))∨(b∧(¬b)∧(¬c)∧(¬d))∨(c∧(¬a)∧(¬c)∧(¬d))∨(c∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧c∧(¬a)∧(¬b))∨(a∧b∧c∧(¬a)∧(¬c))∨(a∧b∧c∧(¬a)∧(¬d))∨(a∧b∧c∧(¬b)∧(¬c))∨(a∧b∧c∧(¬b)∧(¬d))∨(a∧b∧c∧(¬c)∧(¬d))∨(a∧b∧d∧(¬a)∧(¬d))∨(a∧b∧d∧(¬b)∧(¬d))∨(a∧b∧d∧(¬c)∧(¬d))∨(a∧c∧d∧(¬a)∧(¬d))∨(a∧c∧d∧(¬b)∧(¬d))∨(a∧c∧d∧(¬c)∧(¬d))∨(b∧c∧d∧(¬a)∧(¬d))∨(b∧c∧d∧(¬b)∧(¬d))∨(b∧c∧d∧(¬c)∧(¬d))∨((¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧(¬a)∧(¬b)∧(¬d))∨(a∧b∧(¬a)∧(¬c)∧(¬d))∨(a∧b∧(¬b)∧(¬c)∧(¬d))∨(a∧c∧(¬a)∧(¬b)∧(¬d))∨(a∧c∧(¬a)∧(¬c)∧(¬d))∨(a∧c∧(¬b)∧(¬c)∧(¬d))∨(a∧d∧(¬a)∧(¬b)∧(¬d))∨(a∧d∧(¬a)∧(¬c)∧(¬d))∨(b∧c∧(¬a)∧(¬b)∧(¬d))∨(b∧c∧(¬a)∧(¬c)∧(¬d))∨(b∧c∧(¬b)∧(¬c)∧(¬d))∨(b∧d∧(¬a)∧(¬b)∧(¬d))∨(b∧d∧(¬b)∧(¬c)∧(¬d))∨(c∧d∧(¬a)∧(¬c)∧(¬d))∨(c∧d∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧c∧d∧(¬a)∧(¬b))∨(a∧b∧c∧d∧(¬a)∧(¬c))∨(a∧b∧c∧d∧(¬a)∧(¬d))∨(a∧b∧c∧d∧(¬b)∧(¬c))∨(a∧b∧c∧d∧(¬b)∧(¬d))∨(a∧b∧c∧d∧(¬c)∧(¬d))∨(a∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(b∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(c∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧c∧(¬a)∧(¬b)∧(¬c))∨(a∧b∧c∧(¬a)∧(¬b)∧(¬d))∨(a∧b∧c∧(¬a)∧(¬c)∧(¬d))∨(a∧b∧c∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧d∧(¬a)∧(¬b)∧(¬d))∨(a∧b∧d∧(¬a)∧(¬c)∧(¬d))∨(a∧b∧d∧(¬b)∧(¬c)∧(¬d))∨(a∧c∧d∧(¬a)∧(¬b)∧(¬d))∨(a∧c∧d∧(¬a)∧(¬c)∧(¬d))∨(a∧c∧d∧(¬b)∧(¬c)∧(¬d))∨(b∧c∧d∧(¬a)∧(¬b)∧(¬d))∨(b∧c∧d∧(¬a)∧(¬c)∧(¬d))∨(b∧c∧d∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧c∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(b∧c∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(b∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(c∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧c∧d∧(¬a)∧(¬b)∧(¬c))∨(a∧b∧c∧d∧(¬a)∧(¬b)∧(¬d))∨(a∧b∧c∧d∧(¬a)∧(¬c)∧(¬d))∨(a∧b∧c∧d∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧c∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧b∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(a∧c∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))∨(b∧c∧d∧(¬a)∧(¬b)∧(¬c)∧(¬d))