Prove or Disprove That If a and B Are Sets

question 10

Essay

Prove or disprove that if A and B are sets then A ∩ (A ∪ B) = A.

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Definitions:

Reverse Stock Split

A decrease in the number of a corporation's outstanding shares, which increases the share price proportionally.

Market Value

The cost at which you can currently buy or sell a service or asset in the open market.

Par Value

The nominal or face value of a bond, stock, or coupon as stated by the issuer, which may not necessarily reflect its market value.

Stock Split

A corporate action where a company divides its existing shares into multiple shares to boost the liquidity of the shares, though the overall value of the company remains the same.