Use an Ordinary Proof (Not Conditional or Indirect Proof)

question 35

Short Answer

Use an ordinary proof (not conditional or indirect proof):
1.K ⊃ L
2.∼K ∨ F
3.(L • F) ⊃ A
4.∼A
/ ∼K

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Definitions:

Borderlands

Regions located on or near the borders between countries, often characterized by cultural blending and conflicts.

Nineteenth Century

A period spanning from January 1, 1801, to December 31, 1900, marking the 19th century of the Gregorian calendar.

American West

A region of the United States west of the Mississippi River, characteristically known for its frontier history, exploration, and cultural myths.