Prove That $A \cap B = \bar { A } \cup \bar { B }$

question 62

Essay

Prove that $A \cap B = \bar { A } \cup \bar { B }$ giving a proof using logical equivalence.

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Definitions:

Sum of Squares

A measure of the total variability within a data set, calculated by summing the squares of differences from the mean.

Daily Indexes

These are metrics or values that are recalculated every day to reflect the current state or performance of a particular dataset or market.

Mean Absolute Deviation

The average of the absolute differences between each data point in a set and the overall mean, reflecting dispersion.

Absolute Differences

The absolute value of the difference between two numbers, disregarding the sign.