Math — Set Theory
Set operations, De Morgan's laws and counting.
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A \cup B,\quad A \cap B,\quad A \setminus B,\quad A^c
(A \cup B)^c = A^c \cap B^c
|A \cup B| = |A| + |B| - |A \cap B|
|\mathcal{P}(A)| = 2^{|A|}
Set operations, De Morgan's laws and counting.
A \cup B,\quad A \cap B,\quad A \setminus B,\quad A^c
(A \cup B)^c = A^c \cap B^c
|A \cup B| = |A| + |B| - |A \cap B|
|\mathcal{P}(A)| = 2^{|A|}