TUGAS LOGIKA INFORMATIKA
Sederhanakanlah bentuk-bentuk logika menjadi bentuk paling
sederhana
1.
A ˄ ( ¬A → A )
2.
¬ ( ¬ A ˄ ( B ˅ ¬B)
3.
¬ A → ¬ ( A → ¬ B )
4.
( A → B ) → (( A → ¬ B ) → ¬ A )
5.
( A → ( B ˅ ¬ C )) ˄ ¬A ˄ B
6.
( ¬A ˄ B ¬( B → C )) ˄ ¬ ( A → (B → ¬ C )
7.
( ¬A → B ) → (( ¬ A → ¬B ) → A )
8.
( A ˄ ( ¬A ˅ B )) ˅ B ˅ ( A˄( A ˅ B))
9.
( A ˄¬B˄A˄¬C)˅(C˄A˄¬C)
1.
≡ A ˄ ( ¬A → A )
≡
A ˄
( A ˄
A ) HUKUM
IMPLIKASI
≡
A ˄
A HUKUM IDEMPOTEN
≡
A
2.
≡ ¬ ( ¬ A ˄ ( B ˅ ¬B)
≡
A ˄
( ¬
B ˅
B ) HUKUM NEGASI GANDA
≡
A ˄
1 TAUTOLOGI
≡
A IDENTITY OF ˄
3.
≡¬ A → ¬ ( A → ¬ B )
≡¬¬
A ˅
¬
( A →¬
B )
≡
A →
B ≡
¬A˅B
≡
¬¬
A ˅
¬
( ¬A˅¬B) HUKUM IMPLIKASI
≡¬¬
A ˅
(¬¬
A ˄
¬¬
B ) HUKUM DE MORGAN
≡
A ˅
( A ˄
B) HUKUM NEGASI GANDA
≡
A ABSORPTION
4. ≡ ( A → B ) → (( A → ¬ B ) → ¬ A )
≡ ¬ ( A ˅ ¬ B) ˅ ( ¬ ( A˅ ¬B) ˅¬A)) HUKUM IMPLIKASI
≡ ( ¬A ˄ B ) ˅ ( ¬A ˅ B ) ˅ ¬ A HUKUM DE MORGAN
≡ ( ¬A ˄ B ) ˅ ( A ˅ B )
≡ ( ¬A ˅ B ) ˅ ¬A ˅ B HAPUS KURUNG
≡ A ˅ ( ¬A ˅ B ) ˅ B KOMUTATIF
≡ (A ˅ ( ¬A ˅ B )) ˅ B TAMBAH KURUNG
≡ A ˅ B ABSORPTION
5. ≡ ( A → ( B ˅ ¬ C )) ˄ ¬A ˄ B
≡ ( ¬ A ˅ ( B ˅ ¬ C)) ˄ ¬A ˄ B HUKUM IMPLIKASI
≡¬ A ˅ ( B ˅ ¬ C)) ˄ ¬A ˄ B
≡ ¬ A ˄ ¬ A ˄ B ABSORPTION
≡ A ˄ B ABSORPTION
6. ( ¬A ˄ ¬( B → C )) ˄ ¬ ( A → (B → ¬ C ))
≡ ¬(( ¬A ˄ ¬(¬ B ˅ C )) ˄ ¬ ( ¬A ˅ (¬B ˅¬ C)) HUKUM IMPLIKASI
≡ (¬( ¬A ˄ ¬(¬ B ˅ C )) ˅¬( ¬ ( ¬A ˅ (¬B ˅¬ C)) HUKUM DE MORGAN
≡ (¬¬A ˄¬(¬ B ˅ C )) ˅(¬ ¬ ¬A ˄¬¬ (¬B ˅¬ C)) HUKUM DE MORGAN
≡ (¬¬A ˄ ¬¬(¬ B ˅ C )) ˅(¬ ¬ ¬A ˄ (¬¬¬B ˅¬¬¬ C)) HUKUM DE MORGAN
≡ (A ˄ (¬ B ˅ C )) ˅( ¬A ˄ (¬B ˅¬C)) HUKUM NEGASI GANDA
≡ (A ˄ (¬ B ˅ C )) ˅ ¬A HUKUM ABSORPSI
≡ ¬A ˅(A ˄ (¬ B ˅ C )) KOMUTATIF
≡ (¬A ˅(A ˄ (¬ B ˅ C )) TAMBAH KURUNG
≡ (¬A ˅ A) HUKUM ABSORPSI
≡ 1 TAUTOLOGI
7. ( ¬A → B ) → (( ¬ A → ¬B ) → A )
≡ ¬ ( ¬¬ A ˅ B ) ˅ (¬ (¬¬ A ˅¬ B )) ˅ A )) HUKUM IMPLIKASI
≡ (¬ ¬¬ A ˄¬ B ) ˅ (¬¬¬ A ˄¬¬ B )) ˅ A )) HUKUM DE MORGAN
≡ ( ¬ A ˄¬ B ) ˅ (¬ A ˄ B )) ˅ A )) HUKUM NEGASI GANDA
≡ ( ¬ A ˄¬ B ) ˅ (A ˅(¬ A ˄ B )) KOMUTATIF
≡ ( ¬ A ˄¬ B ) ˅ ¬ A HUKUM ABSORPSI
≡ ¬ A ˅ ( ¬ A ˄¬ B ) KOMUTATIF
≡ ¬A HUKUM ABSORPSI
8 ≡ ( A ˄ ( ¬A ˅ B )) ˅ B ˅ ( A˄( A ˅ B))
≡ ¬A ˅ B ˅ A HUKUM ABSORPSI
≡ ¬A ˅ A ˅ B KOMUTATIF
≡ 1 ˅ B HUKUM NEGASI
9. ( A ˄¬B˄A˄¬C)˅(C˄A˄¬C)
≡ ( A ˄ A ˄ ¬B˄¬C)˅(C˄¬C˄ A) KOMUTATIF
≡( A ˄ ¬B˄¬C)˅(1 ˄ A) HUKUM IDEMPOTEN DAN NEGASI
≡( A ˄ ¬B˄¬C)˅ A HUKUM IDENTITAS
≡ (A ˅ A ) ˅ ( A ˄ ¬B ) ˅ ( A ˄ ¬C )
≡ A ˅ A ˄ (¬B ˅¬C ) HUKUM DISTRIBUTIF
≡ A ˄ (¬B ˅¬C ) HUKUM IDEMPOTEN
≡ ¬ ( A ˅ ¬ B) ˅ ( ¬ ( A˅ ¬B) ˅¬A)) HUKUM IMPLIKASI
≡ ( ¬A ˄ B ) ˅ ( ¬A ˅ B ) ˅ ¬ A HUKUM DE MORGAN
≡ ( ¬A ˄ B ) ˅ ( A ˅ B )
≡ ( ¬A ˅ B ) ˅ ¬A ˅ B HAPUS KURUNG
≡ A ˅ ( ¬A ˅ B ) ˅ B KOMUTATIF
≡ (A ˅ ( ¬A ˅ B )) ˅ B TAMBAH KURUNG
≡ A ˅ B ABSORPTION
5. ≡ ( A → ( B ˅ ¬ C )) ˄ ¬A ˄ B
≡ ( ¬ A ˅ ( B ˅ ¬ C)) ˄ ¬A ˄ B HUKUM IMPLIKASI
≡¬ A ˅ ( B ˅ ¬ C)) ˄ ¬A ˄ B
≡ ¬ A ˄ ¬ A ˄ B ABSORPTION
≡ A ˄ B ABSORPTION
6. ( ¬A ˄ ¬( B → C )) ˄ ¬ ( A → (B → ¬ C ))
≡ ¬(( ¬A ˄ ¬(¬ B ˅ C )) ˄ ¬ ( ¬A ˅ (¬B ˅¬ C)) HUKUM IMPLIKASI
≡ (¬( ¬A ˄ ¬(¬ B ˅ C )) ˅¬( ¬ ( ¬A ˅ (¬B ˅¬ C)) HUKUM DE MORGAN
≡ (¬¬A ˄¬(¬ B ˅ C )) ˅(¬ ¬ ¬A ˄¬¬ (¬B ˅¬ C)) HUKUM DE MORGAN
≡ (¬¬A ˄ ¬¬(¬ B ˅ C )) ˅(¬ ¬ ¬A ˄ (¬¬¬B ˅¬¬¬ C)) HUKUM DE MORGAN
≡ (A ˄ (¬ B ˅ C )) ˅( ¬A ˄ (¬B ˅¬C)) HUKUM NEGASI GANDA
≡ (A ˄ (¬ B ˅ C )) ˅ ¬A HUKUM ABSORPSI
≡ ¬A ˅(A ˄ (¬ B ˅ C )) KOMUTATIF
≡ (¬A ˅(A ˄ (¬ B ˅ C )) TAMBAH KURUNG
≡ (¬A ˅ A) HUKUM ABSORPSI
≡ 1 TAUTOLOGI
7. ( ¬A → B ) → (( ¬ A → ¬B ) → A )
≡ ¬ ( ¬¬ A ˅ B ) ˅ (¬ (¬¬ A ˅¬ B )) ˅ A )) HUKUM IMPLIKASI
≡ (¬ ¬¬ A ˄¬ B ) ˅ (¬¬¬ A ˄¬¬ B )) ˅ A )) HUKUM DE MORGAN
≡ ( ¬ A ˄¬ B ) ˅ (¬ A ˄ B )) ˅ A )) HUKUM NEGASI GANDA
≡ ( ¬ A ˄¬ B ) ˅ (A ˅(¬ A ˄ B )) KOMUTATIF
≡ ( ¬ A ˄¬ B ) ˅ ¬ A HUKUM ABSORPSI
≡ ¬ A ˅ ( ¬ A ˄¬ B ) KOMUTATIF
≡ ¬A HUKUM ABSORPSI
8 ≡ ( A ˄ ( ¬A ˅ B )) ˅ B ˅ ( A˄( A ˅ B))
≡ ¬A ˅ B ˅ A HUKUM ABSORPSI
≡ ¬A ˅ A ˅ B KOMUTATIF
≡ 1 ˅ B HUKUM NEGASI
9. ( A ˄¬B˄A˄¬C)˅(C˄A˄¬C)
≡ ( A ˄ A ˄ ¬B˄¬C)˅(C˄¬C˄ A) KOMUTATIF
≡( A ˄ ¬B˄¬C)˅(1 ˄ A) HUKUM IDEMPOTEN DAN NEGASI
≡( A ˄ ¬B˄¬C)˅ A HUKUM IDENTITAS
≡ (A ˅ A ) ˅ ( A ˄ ¬B ) ˅ ( A ˄ ¬C )
≡ A ˅ A ˄ (¬B ˅¬C ) HUKUM DISTRIBUTIF
≡ A ˄ (¬B ˅¬C ) HUKUM IDEMPOTEN
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