HEURISTICA
DEMOSTRAR :
A) ( ∪ i = 0 n A i ) ′ = ∩ i = 0 n A i ′ {\displaystyle ({\cup _{i=0}^{n}A_{i}})'={\cap _{i=0}^{n}A'_{i}}}
(Nota: ) ∪ i = 0 n A i {\displaystyle {\cup _{i=0}^{n}A_{i}}} , SIGNIFICA: A 0 U A 1 U . . . U A n {\displaystyle {A_{0}UA_{1}U...UA_{n}}}
--Camilo 02:28 28 oct, 2004 (UTC)