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Formal Logics
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p ∧ q ≡ q ∧ p
p ∨ q ≡ q ∨ p
Commutative
p ∧ (q ∧ r) ≡ (p ∧ q) ∧ r
p ∨ (q ∨ r) ≡ (p ∨ q) ∨ r
Associative
p ∧ T ≡ p
p ∨ F ≡ p
Identity
p ∧ ~p ≡ F
p V ~p ≡ T
Inverse
p ∧ (q ∨ r) ≡ (p ∧ q) ∨ (p ∧ r)
p ∨ (q ∧ r) ≡ (p ∨ q) ∧ (p ∨ r)
Distributive
~(~p) ≡ p
Double Negation
p ∧ p ≡ p
p ∨ p ≡ p
Idempotent
~(p ∧ q) ≡ ~p ∨ ~q
~(p ∨ q) ≡ ~p ∧ ~q
De Morgan’s
p ∧ F ≡ F
p V T ≡ T
Universal Bound
p ∧ (p ∨ q) ≡ p
p ∨ (p ∧ q) ≡ p
Absorption