Expresión ¬(¬A∧¬B∧¬C∧¬D+¬A∧¬B∧C∧D+¬A∧B∧C∧¬D)
El profesor se sorprenderá mucho al ver tu solución correcta😉
Solución
Solución detallada
$$\left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg a \wedge \neg b\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right) = \neg a \wedge \left(c \vee \neg b\right) \wedge \left(c \vee \neg d\right) \wedge \left(\neg b \vee \neg d\right) \wedge \left(b \vee d \vee \neg c\right)$$
$$\neg \left(\left(b \wedge c \wedge \neg a \wedge \neg d\right) \vee \left(c \wedge d \wedge \neg a \wedge \neg b\right) \vee \left(\neg a \wedge \neg b \wedge \neg c \wedge \neg d\right)\right) = a \vee \left(b \wedge d\right) \vee \left(b \wedge \neg c\right) \vee \left(d \wedge \neg c\right) \vee \left(c \wedge \neg b \wedge \neg d\right)$$
$$a \vee \left(b \wedge d\right) \vee \left(b \wedge \neg c\right) \vee \left(d \wedge \neg c\right) \vee \left(c \wedge \neg b \wedge \neg d\right)$$
a∨(b∧d)∨(b∧(¬c))∨(d∧(¬c))∨(c∧(¬b)∧(¬d))
Tabla de verdad
+---+---+---+---+--------+
| a | b | c | d | result |
+===+===+===+===+========+
| 0 | 0 | 0 | 0 | 0 |
+---+---+---+---+--------+
| 0 | 0 | 0 | 1 | 1 |
+---+---+---+---+--------+
| 0 | 0 | 1 | 0 | 1 |
+---+---+---+---+--------+
| 0 | 0 | 1 | 1 | 0 |
+---+---+---+---+--------+
| 0 | 1 | 0 | 0 | 1 |
+---+---+---+---+--------+
| 0 | 1 | 0 | 1 | 1 |
+---+---+---+---+--------+
| 0 | 1 | 1 | 0 | 0 |
+---+---+---+---+--------+
| 0 | 1 | 1 | 1 | 1 |
+---+---+---+---+--------+
| 1 | 0 | 0 | 0 | 1 |
+---+---+---+---+--------+
| 1 | 0 | 0 | 1 | 1 |
+---+---+---+---+--------+
| 1 | 0 | 1 | 0 | 1 |
+---+---+---+---+--------+
| 1 | 0 | 1 | 1 | 1 |
+---+---+---+---+--------+
| 1 | 1 | 0 | 0 | 1 |
+---+---+---+---+--------+
| 1 | 1 | 0 | 1 | 1 |
+---+---+---+---+--------+
| 1 | 1 | 1 | 0 | 1 |
+---+---+---+---+--------+
| 1 | 1 | 1 | 1 | 1 |
+---+---+---+---+--------+
$$\left(a \vee b \vee c \vee d\right) \wedge \left(a \vee b \vee \neg c \vee \neg d\right) \wedge \left(a \vee d \vee \neg b \vee \neg c\right)$$
(a∨b∨c∨d)∧(a∨b∨(¬c)∨(¬d))∧(a∨d∨(¬b)∨(¬c))
$$\left(a \vee b \vee c \vee d\right) \wedge \left(a \vee b \vee c \vee \neg c\right) \wedge \left(a \vee b \vee d \vee \neg b\right) \wedge \left(a \vee b \vee d \vee \neg d\right) \wedge \left(a \vee b \vee \neg b \vee \neg c\right) \wedge \left(a \vee b \vee \neg c \vee \neg d\right) \wedge \left(a \vee c \vee d \vee \neg c\right) \wedge \left(a \vee d \vee \neg b \vee \neg c\right) \wedge \left(a \vee d \vee \neg c \vee \neg d\right) \wedge \left(a \vee b \vee c \vee d \vee \neg c\right) \wedge \left(a \vee b \vee d \vee \neg b \vee \neg c\right) \wedge \left(a \vee b \vee d \vee \neg c \vee \neg d\right)$$
(a∨b∨c∨d)∧(a∨b∨c∨(¬c))∧(a∨b∨d∨(¬b))∧(a∨b∨d∨(¬d))∧(a∨c∨d∨(¬c))∧(a∨b∨(¬b)∨(¬c))∧(a∨b∨(¬c)∨(¬d))∧(a∨d∨(¬b)∨(¬c))∧(a∨d∨(¬c)∨(¬d))∧(a∨b∨c∨d∨(¬c))∧(a∨b∨d∨(¬b)∨(¬c))∧(a∨b∨d∨(¬c)∨(¬d))
$$a \vee \left(b \wedge d\right) \vee \left(b \wedge \neg c\right) \vee \left(d \wedge \neg c\right) \vee \left(c \wedge \neg b \wedge \neg d\right)$$
a∨(b∧d)∨(b∧(¬c))∨(d∧(¬c))∨(c∧(¬b)∧(¬d))
Ya está reducido a FND
$$a \vee \left(b \wedge d\right) \vee \left(b \wedge \neg c\right) \vee \left(d \wedge \neg c\right) \vee \left(c \wedge \neg b \wedge \neg d\right)$$
a∨(b∧d)∨(b∧(¬c))∨(d∧(¬c))∨(c∧(¬b)∧(¬d))