A Stamp Collector Wants to Include in Her Collection Exactly $I$

question 7

Short Answer

A stamp collector wants to include in her collection exactly one stamp from each country of Africa. If $I$ (s) means that she has stamp $s$ in her collection, $F ( s , c )$ means that stamp $s$ was issued by country $c$ , the domain for $s$ is all stamps, and the domain for $c$ is all countries of Africa, express the statement that her collection satisfies her requirement. Do not use the $\exists$ ! symbol.

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Definitions:

Raise

An increase, typically referring to salary, wages, or funds.

Corporate Philanthropy

The effort or inclination of companies to promote the welfare of others, typically through charitable donations of funds or time.

Non-Profit Organizations

Entities that operate for the welfare of the public or a specific group of people, reinvesting all profits into their mission rather than distributing them to owners or shareholders.

Sabbatical Leaves

Authorized absences from work, typically for academic or research pursuits, granted to employees as a benefit or reward.